HTML with CSS
Ref: http://www.w3schools.com/html/html_intro.asp
HTML Introduction[top]
What is HTML?
HTML is a language for describing web pages.
• HTML stands for Hyper Text Markup Language
• HTML is not a programming language, it is a markup language
• A markup language is a set of markup tags
• HTML uses markup tags to describe web pages
HTML Tags
HTML markup tags are usually called HTML tags
• HTML tags are keywords surrounded by angle brackets like < html>
• HTML tags normally come in pairs like < b> and < /b>
• The first tag in a pair is the start tag, the second tag is the end tag
• Start and end tags are also called opening tags and closing tags
HTML Documents = Web Pages
• HTML documents describe web pages
• HTML documents contain HTML tags and plain text
• HTML documents are also called web pages
The purpose of a web browser (like Internet Explorer or Firefox) is to read HTML documents and display them as web pages. The browser does not display the HTML tags, but uses the tags to interpret the content of the page:
< html>
< body>
< h1>My First Heading< /h1>
< p>My first paragraph.< /p>
< /body>
< /html>
Example Explained
• The text between < html> and < /html> describes the web page • The text between < body> and < /body> is the visible page content • The text between < h1> and < /h1> is displayed as a heading • The text between < p> and < /p> is displayed as a paragraph
Ref: http://www.w3schools.com/html/html_getstarted.asp
What You Need[top]
You don't need any tools to learn HTML at W3Schools.
• You don't need an HTML editor
• You don't need a web server
• You don't need a web site
Editing HTML
HTML can be written and edited using many different editors like Dreamweaver and Visual Studio.
However, in this tutorial we use a plain text editor (like Notepad) to edit HTML. We believe using a plain text editor is the best way to learn HTML.
Create Your Own Test Web
If you just want to learn HTML, skip the rest of this chapter.
If you want to create a test page on your own computer, just copy the 3 files below to your desktop.
(Right click on each link, and select "save target as" or "save link as")
mainpage.htm
page1.htm
page2.htm
After you have copied the files, you can double-click on the file called "mainpage.htm" and see your first web site in action.
Use Your Test Web For Learning
We suggest you experiment with everything you learn at W3Schools by editing your web files with a text editor (like Notepad). Note: If your test web contains HTML markup tags you have not learned, don't panic. You will learn all about it in the next chapters.
.HTM or .HTML File Extension?
When you save an HTML file, you can use either the .htm or the .html file extension. There is no difference, it is entirely up to you.
HTML Basic - 4 Examples[top]
Don't worry if the examples use tags you have not learned. You will learn about them in the next chapters.
HTML Headings
HTML headings are defined with the < h1> to < h6> tags.
HTML Paragraphs
HTML paragraphs are defined with the < p> tag.< /p>
HTML Links
HTML links are defined with the < a> tag.
< a href="http://www.w3schools.com">This is a link< /a>
Note: The link address is specified in the href attribute.
(You will learn about attributes in a later chapter of this tutorial).
HTML Images
HTML images are defined with the < img> tag.
< img src="w3schools.jpg" width="104" height="142" />
Note: The name and the size of the image are provided as attributes.
HTML Elements[top]
HTML documents are defined by HTML elements.
HTML Elements
An HTML element is everything from the start tag to the end tag:
Start tag * | Element content | End tag * |
---|---|---|
< p> | This is a paragraph | < /p> |
< a href="default.htm" > | This is a link | < /a> |
< br />/td> |
* The start tag is often called the opening tag. The end tag is often called the closing tag.
HTML Element Syntax
• An HTML element starts with a start tag / opening tag
• An HTML element ends with an end tag / closing tag
• The element content is everything between the start and the end tag
• Some HTML elements have empty content
• Empty elements are closed in the start tag
• Most HTML elements can have attributes
Tip: You will learn about attributes in the next chapter of this tutorial.
Nested HTML Elements
Most HTML elements can be nested (can contain other HTML elements).
HTML documents consist of nested HTML elements.
HTML Document Example
< html>< body>
< p>This is my first paragraph.< /p>
< /body>
< /html>
The example above contains 3 HTML elements.
HTML Example Explained
The < p> element:
< p>This is my first paragraph.< /p>The < p> element defines a paragraph in the HTML document. The element has a start tag < p> and an end tag < /p>. The element content is: This is my first paragraph.
The < body> element:
< body>< p>This is my first paragraph.< /p>
< /body>
The < body> element defines the body of the HTML document. The element has a start tag < body> and an end tag < /body>. The element content is another HTML element (a p element).
The < html> element:
< html>< body>
< p>This is my first paragraph.< /p>
< /body>
< /html>
The < html> element defines the whole HTML document. The element has a start tag < html> and an end tag < /html>. The element content is another HTML element (the body element).
Don't Forget the End Tag
Some HTML elements might display correctly even if you forget the end tag:
< p>This is a paragraph< p>This is a paragraph
The example above works in most browsers, because the closing tag is considered optional.
Never rely on this. Many HTML elements will produce unexpected results and/or errors if you forget the end tag .
Empty HTML Elements
HTML elements with no content are called empty elements.
< br> is an empty element without a closing tag (the < br> tag defines a line break).
Tip: In XHTML, all elements must be closed. Adding a slash inside the start tag, like < br />, is the proper way of closing empty elements in XHTML (and XML).
HTML Tip: Use Lowercase Tags
HTML tags are not case sensitive: < P> means the same as < p>. Many web sites use uppercase HTML tags. W3Schools use lowercase tags because the World Wide Web Consortium (W3C) recommends lowercase in HTML 4, and demands lowercase tags in XHTML.
Ref: http://www.w3schools.com/html/html_attributes.asp
HTML Attributes [top]
Attributes provide additional information about HTML elements.
HTML Attributes
• HTML elements can have attributes
• Attributes provide additional information about an element
• Attributes are always specified in the start tag
• Attributes come in name/value pairs like: name="value"
Attribute Example
HTML links are defined with the tag. The link address is specified in the href attribute:
< a href="http://www.w3schools.com">This is a link< /a>Always Quote Attribute Values
Attribute values should always be enclosed in quotes.
Double style quotes are the most common, but single style quotes are also allowed.
Tip: In some rare situations, when the attribute value itself contains quotes, it is necessary to use single quotes: name='John "ShotGun" Nelson'
HTML Tip: Use Lowercase Attributes
Attribute names and attribute values are case-insensitive.
However, the World Wide Web Consortium (W3C) recommends lowercase attributes/attribute values in their HTML 4 recommendation.
Newer versions of (X)HTML will demand lowercase attributes.
HTML Attributes Reference
A complete list of legal attributes for each HTML element is listed in our:
Complete HTML Reference
Below is a list of some attributes that are standard for most HTML elements:
Attribute | Value | Description |
---|---|---|
class | classname | Specifies a classname for an element |
id | id | Specifies a unique id for an element |
style | style_definition | Specifies an inline style for an element |
title | tooltip_text | Specifies extra information about an element (displayed as a tool tip) |
For more information about standard attributes:
HTML Standard Attributes Reference
Ref: http://www.w3schools.com/html/html_headings.asp
HTML Headings [top]
Headings are important in HTML documents.
HTML Headings
Headings are defined with the < h1> to < h6> tags. < h1> defines the most important heading. < h6> defines the least important heading. Example
< h1>This is a heading< /h1>< h2>This is a heading< /h2>
< h3>This is a heading< /h3>
Note: Browsers automatically add some empty space (a margin) before and after each heading.
Headings Are Important
Use HTML headings for headings only. Don't use headings to make text BIG or bold.
Search engines use your headings to index the structure and content of your web pages.
Since users may skim your pages by its headings, it is important to use headings to show the document structure.
H1 headings should be used as main headings, followed by H2 headings, then the less important H3 headings, and so on.
HTML Lines
The < hr /> tag creates a horizontal line in an HTML page. The hr element can be used to separate content:
< p>This is a paragraph< /p>< hr />
< p>This is a paragraph< /p>
< hr />
< p>This is a paragraph < /p>
HTML Comments
Comments can be inserted into the HTML code to make it more readable and understandable. Comments are ignored by the browser and are not displayed.
Comments are written like this:
Example
Note: There is an exclamation point after the opening bracket, but not before the closing bracket.
HTML Tip - How to View HTML Source
Have you ever seen a Web page and wondered "Hey! How did they do that?"
To find out, right-click in the page and select "View Source" (IE) or "View Page Source" (Firefox), or similar for other browsers. This will open a window containing the HTML code of the page.
HTML Tag Reference
W3Schools' tag reference contains additional information about these tags and their attributes.
You will learn more about HTML tags and attributes in the next chapters of this tutorial.
Tag | Description |
---|---|
< html> | Defines an HTML document |
< body> | Defines the document's body |
< h1> to < h6> | < h1> to < h6> |
< hr /> | Defines a horizontal line |
< !--> | Defines a comment |
Ref: http://www.w3schools.com/html/html_paragraphs.asp
HTML Paragraphs [top]
HTML documents are divided into paragraphs.
HTML Paragraphs
Paragraphs are defined with the < p> tag.
< p>This is a paragraph< /p>< p>This is another paragraph< /p>
Note: Browsers automatically add an empty line before and after a paragraph.
Don't Forget the End Tag
< p>This is a paragraph
< p>This is another paragraph
The example above will work in most browsers, but don't rely on it. Forgetting the end tag can produce unexpected results or errors.
Note: Future version of HTML will not allow you to skip end tags.
HTML Line Breaks
Use the < br /> tag if you want a line break (a new line) without starting a new paragraph:< /p>
< p>This is< br />a para< br />graph with line breaks< /p>
The < br /> element is an empty HTML element. It has no end tag.
< br> or < br />
In XHTML, XML, elements with no end tag (closing tag) are not allowed. Even if < br> works in all browsers, writing < br /> instead works better in XHTML and XML applications.
HTML Output - Useful Tips
You cannot be sure how HTML will be displayed. Large or small screens, and resized windows will create different results.
With HTML, you cannot change the output by adding extra spaces or extra lines in your HTML code.
The browser will remove extra spaces and extra lines when the page is displayed. Any number of lines count as one line, and any number of spaces count as one space.
HTML Tag Reference
W3Schools' tag reference contains additional information about HTML elements and their attributes.
Tag | Description |
---|---|
< p> | Defines a paragraph |
< br /> | Inserts a single line break |
ref: http://www.w3schools.com/html/html_formatting.asp
HTML Text Formatting [top]
HTML Formatting Tags
HTML uses tags like < b> and < i> for formatting output, like bold or italic text.
These HTML tags are called formatting tags (look at the bottom of this page for a complete reference).
Often < strong> renders as < b>, and < em> renders as < i>.
However, there is a difference in the meaning of these tags:
< b> or < i> defines bold or italic text only.
< strong> or < em> means that you want the text to be rendered in a way that the user undestrongrstands as "important". Today, all major browsers render strong as bold and em as italics. However, if a browser one day wants to make a text highlighted with the strong feature, it might be cursive for example and not bold!
Additional Examples
Text formatting
How to format text in an HTML document.
Preformatted text
< pre>...< /pre>
How to control the line breaks and spaces with the pre tag.
"Computer output" tags
How different "computer output" tags will be displayed.
Address
How to define contact information for the author/owner of an HTML document.
Abbreviations and acronyms
How to handle abbreviations and acronyms.
Text direction
How to change the text direction.
Quotations
How to handle long and short quotations.
Deleted and inserted text
How to mark deleted and inserted text.
HTML Text Formatting Tags
Tag | Description |
---|---|
< b> | Defines bold text |
< big> | Defines big text |
< em> | Defines emphasized text |
< i> | Defines italic text |
< small> | Defines small text |
< strong> | Defines strong text |
< sub> | Defines subscripted text |
< sup> | Defines subscripted text |
< ins> | Defines inserted text |
< del> | Defines deleted text |
HTML "Computer Output" Tags
Tag | Description |
---|---|
< code> | Defines computer code text |
< kbd> | Defines keyboard text |
< samp> | Defines sample computer code |
< tt> | Defines teletype text |
< var> | Defines a variable |
< pre> | Defines preformatted text |
HTML Citations, Quotations, and Definition Tags
Tag | Description |
---|---|
< abbr> | Defines an abbreviation |
< acronym> | Defines an acronym |
< address> | Defines contact information for the author/owner of a document |
< bdo> | Defines the text direction |
< blockquote> | Defines a long quotation |
< q> | Defines a short quotation |
< cite> | Defines a citation |
< dfn> | Defines a definition term |
Ref: http://www.w3schools.com/html/html_fonts.asp
HTML Fonts [top]
The HTML < font> Tag Should NOT be Used
The < font> tag is deprecated in HTML 4, and removed from HTML5.
The World Wide Web Consortium (W3C) has removed the < font> tag from its recommendations.
In HTML 4, style sheets (CSS) should be used to define the layout and display properties for many HTML elements.
The example below shows how the HTML could look by using the < font> tag:
< p>
< font size="5" face="arial" color="red">
This paragraph is in Arial, size 5, and in red text color.
< /font>
< /p>
< p>
< font size="3" face="verdana" color="blue">
This paragraph is in Verdana, size 3, and in blue text color. < /font>
< /p>
The Right Way to Do It - With Styles
Set the font of text
This example demonstrates how to set the font of a text.
Set the font size of text
This example demonstrates how to set the font size of a text.
Set the font color of text
This example demonstrates how to set the color of a text.
Set the font, font size, and font color of text
This example demonstrates how to set the font, font size, and font color of a text.
Ref:http://www.w3schools.com/html/html_styles.asp
HTML Styles - CSS [top]
CSS is used to style HTML elements.
Because this is the subject of this whole website, I will omit this section.
Ref: http://www.w3schools.com/html/html_links.asp
HTML Links [top]
Links are found in nearly all Web pages. Links allow users to click their way from page to page.
HTML Hyperlinks (Links)
A hyperlink (or link) is a word, group of words, or image that you can click on to jump to a new document or a new section within the current document.
When you move the cursor over a link in a Web page, the arrow will turn into a little hand.
Links are specified in HTML using the < a> tag.
The < a> tag can be used in two ways:
1. To create a link to another document, by using the href attribute
2. To create a bookmark inside a document, by using the name attribute
HTML Link Syntax
The HTML code for a link is simple. It looks like this:
< a href="url">Link text< /a>
The href attribute specifies the destination of a link.
Example
< a href="http://www.w3schools.com/">Visit W3Schools < /a>
which will display like this: Visit W3Schools (underlined)
Clicking on this hyperlink will send the user to W3Schools' homepage.
Tip: The "Link text" doesn't have to be text. It can be an image or any other HTML element.
HTML Links - The target Attribute
The target attribute specifies where to open the linked document.
The example below will open the linked document in a new browser window or a new tab:
HTML Links - The name Attribute
The name attribute specifies the name of an anchor.
The name attribute is used to create a bookmark inside an HTML document.
Note: The upcoming HTML5 standard suggest using the id attribute instead of the name attribute for specifying the name of an anchor. Using the id attribute actually works also for HTML4 in all modern browsers.
Bookmarks are not displayed in any special way. They are invisible to the reader.
A named anchor inside an HTML document:
< a name="tips">Useful Tips Section< /a>
Create a link to the "Useful Tips Section" inside the same document:
< a href="#tips">
Visit the Useful Tips Section< /a>
Or, create a link to the "Useful Tips Section" from another page:
< a href="http://www.w3schools.com/html_links.htm#tips">
Visit the Useful Tips Section< /a>
Basic Notes - Useful Tips
Note: Always add a trailing slash to subfolder references. If you link like this:
href="http://www.w3schools.com/html",
you will generate two requests to the server, the server will first add a slash to the address, and then create a new request like this:
href="http://www.w3schools.com/html/".
Tip: Named anchors are often used to create "table of contents" at the beginning of a large document. Each chapter within the document is given a named anchor, and links to each of these anchors are put at the top of the document.
More Examples
An image as a link
How to use an image as a link.
Link to a location on the same page
How to link to a bookmark.
Break out of a frame
How to break out of a frame (if your site is locked in a frame).
Create a mailto link
How to link to a mail message (will only work if you have mail installed).
Create a mailto link 2
Another mailto link.
HTML Link Tags
< a>: defines an anchor
Ref: http://www.w3schools.com/html/html_images.asp
HTML Images [top]
HTML Images - The < img> Tag and the Src Attribute
In HTML, images are defined with the < img> tag.
The < img> tag is empty, which means that it contains attributes only, and has no closing tag.
To display an image on a page, you need to use the src attribute. Src stands for "source". The value of the src attribute is the URL of the image you want to display.
Syntax for defining an image:
< img src="url" alt="some_text"/>
The URL points to the location where the image is stored. An image named "boat.gif", located in the "images" directory on "www.w3schools.com" has the URL:
http://www.w3schools.com/images/boat.gif.
The browser displays the image where the < img> tag occurs in the document. If you put an image tag between two paragraphs, the browser shows the first paragraph, then the image, and then the second paragraph.
HTML Images - The Alt Attribute
The required alt attribute specifies an alternate text for an image, if the image cannot be displayed.
The value of the alt attribute is an author-defined text:
< img src="boat.gif" alt="Big Boat" />
The alt attribute provides alternative information for an image if a user for some reason cannot view it (because of slow connection, an error in the src attribute, or if the user uses a screen reader).
HTML Images - Set Height and Width of an Image
The height and width attributes are used to specify the height and width of an image.
The attribute values are specified in pixels by default:
< img src="pulpit.jpg" alt="Pulpit rock" width="304" height="228" />
Tip: It is a good practice to specify both the height and width attributes for an image. If these attributes are set, the space required for the image is reserved when the page is loaded. However, without these attributes, the browser does not know the size of the image. The effect will be that the page layout will change during loading (while the images load).
Basic Notes - Useful Tips
Note: If an HTML file contains ten images - eleven files are required to display the page right. Loading images take time, so my best advice is: Use images carefully.
Note: When a web page is loaded, it is the browser, at that moment, that actually gets the image from a web server and inserts it into the page. Therefore, make sure that the images actually stay in the same spot in relation to the web page, otherwise your visitors will get a broken link icon. The broken link icon is shown if the browser cannot find the image.
More examples
Aligning images
How to align an image within the text.
Let the image float
How to let an image float to the left or right of a paragraph.
Make a hyperlink of an image
How to use an image as a link.
Create an image map
How to create an image map, with clickable regions. Each of the regions is a hyperlink.
HTML Image Tags
Tag | Description |
---|---|
< img /> | Defines an image |
< map> | Defines an image-map |
< area /> | Defines a clickable area inside an image-map |
Ref: http://www.w3schools.com/html/html_tables.asp
HTML Tables [top]
How to specify different table borders:
First | Row |
Second | Row |
< table border="15">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
Tables are defined with the < table> tag. A table is divided into rows (with the < tr> tag), and each row is divided into data cells (with the < td> tag). td stands for "table data," and holds the content of a data cell. A < td> tag can contain text, links, images, lists, forms, other tables, etc.
Table Example
< table border="1">< tr>
< td>row 1, cell 1< /td>
< td>row 1, cell 2< /td>
< /tr>
< tr>
< td>row 2, cell 1 < /td>
< td>row 2, cell 2< /td>
< /tr>
< /table>
row 1, cell 1 | row 1, cell 2 |
row 2, cell 1 | row 2, cell 2 |
HTML Tables and the Border Attribute
If you do not specify a border attribute, the table will be displayed without borders. Sometimes this can be useful, but most of the time, we want the borders to show.
To display a table with borders, specify the border attribute (see above).
HTML Table Headers
Header information in a table are defined with the < th> tag.
All major browsers will display the text in the < th> element as bold and centered.
< tr>
< th>Header 1< /th>
< th>Header 2< /th>
< /tr>
< tr>
< td>row 1, cell 1< /td>
< td>row 1, cell 2< /td>
< /tr>
< tr>
< td>row 2, cell 1< /td>
< td>row 2, cell 2< /td>
< /tr>
< /table>
Header 1 | Header 2 |
---|---|
row 1, cell 1 | row 1, cell 2 |
row 2, cell 1 | row 2, cell 2 |
More Examples
How to create tables without borders
100 | 200 | 300 |
400 | 500 | 600 |
< tr>
< td>100< /td>
< td>200< /td>
< td>300< /td>
< /tr>
< tr>
< td>400< /td>
< td>500< /td>
< td>600< /td>
< /tr>
< /table>
How to Create Table Headers
Table headers:
Name | Telephone | Telephone |
---|---|---|
Bill Gates | 555 77 854 | 555 77 855 |
< tr>
< th>Name< /th>
< th>Telephone< /th>
< th>Telephone< /th>
< /tr>
< tr>
< td>Bill Gates< /td>
< td>555 77 854< /td>
< td>555 77 855< /td>
< /tr>
< /table>
Vertical headers:
First Name: | Bill Gates |
---|---|
Telephone: | 555 77 854 |
Telephone: | 555 77 855 |
< h4>Vertical headers:< /h4>
< table border="1">
< tr>
< th>First Name:< /th>
< td>Bill Gates< /td>
< /tr>
< tr>
< th>Telephone:< /th>
< td>555 77 854< /td>
< /tr>
< tr>
< th>Telephone:< /th>
< td>555 77 855< /td>
< /tr>
< /table>
Hoe to Add a Caption to a Table
Month | Savings |
---|---|
January | $100 |
February | $50 |
< table border="1">
< caption>Monthly savings< /caption>
< tr>
< th>Month< /th>
< th>Savings< /th>
< /tr>
< tr>
< td>January< /td>
< td>$100< /td>
< /tr>
< tr>
< td>February< /td>
< td>$50< /td>
< /tr>
< /table>
Table cells that span more than one row/column
Cell that spans two columns:
Name | Telephone | |
---|---|---|
Bill Gates | 555 77 854 | 555 77 855 |
Cell that spans two columns:
< table border="1">
< tr>
< th>Name< /th>
< th colspan="2">Telephone< /th>
< /tr>
< tr>
< td>Bill Gates< /td>
< td>555 77 854< /td>
< td>555 77 855< /td>
< /tr>
< /table>
Cell that spans two rows:
First Name: | Bill Gates |
---|---|
Telephone: | 555 77 854 |
555 77 855 |
< table border="1">
< tr>
< th>First Name:< /th>
< td>Bill Gates< /td>
< /tr>
< tr>
< th rowspan="2">Telephone:< /th>
< td>555 77 854< /td>
< /tr>
< tr>
< td>555 77 855< /td>
< /tr>
< /table>
Tags inside a Table:
How to display elements inside other elements.
This is a paragraph This is another paragraph |
This cell contains a table:
|
||||
This cell contains a list
|
HELLO |
< table border="1">
< tr>
< td>
< p>This is a paragraph< /p>
< p>This is another paragraph< /p>
< /td>
< td>This cell contains a table:
< table border="1">
< tr>
< td>A< /td>
< td>B< /td>
< /tr>
< tr>
< td>C< /td>
< td>D< /td>
< /tr>
< /table>
< /td>
< /tr>
< tr>
< td>This cell contains a list
< ul>
< li>apples< /li>
< li>bananas< /li>
< li>pineapples< /li>
< /ul>
< /td>
< td>HELLO< /td>
< /tr>
< /table>
Cell padding:
How to use cellpadding to create more white space between the cell content and its borders.
Without cellpadding:
First | Row |
Second | Row |
< table border="1">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With cellpadding:
First | Row |
Second | Row |
< h4>With cellpadding:< /h4>
< table border="1" cellpadding="10">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
Cell Spacing:
How to use cellspacing to increase the distance between the cells.
Without cellspacing:
First | Row |
Second | Row |
< table border="1">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With cellspacing:
First | Row |
Second | Row |
< h4>With cellspacing:< /h4>
< table border="1" cellspacing="10">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
The frame attribute:
How to use the "frame" attribute to control the borders around the table.
Note: If you see no frames/borders around the tables below, your browser does not support the "frame" attribute.
With frame="border":
First | Row |
Second | Row |
< h4>With frame="border":< /h4>
< table frame="border">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="box":
First | Row |
Second | Row |
< h4>With frame="box":< /h4>
< table frame="box">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="void":
First | Row |
Second | Row |
< table frame="void">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="above":
First | Row |
Second | Row |
< table frame="above">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="below":
First | Row |
Second | Row |
< table frame="below">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="hsides":
First | Row |
Second | Row |
< table frame="hsides">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="vsides":
First | Row |
Second | Row |
< table frame="vsides">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="lhs":
First | Row |
Second | Row |
< table frame="lhs">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
With frame="rhs":
First | Row |
Second | Row |
< table frame="rhs">
< tr>
< td>First< /td>
< td>Row< /td>
< /tr>
< tr>
< td>Second< /td>
< td>Row< /td>
< /tr>
< /table>
HTML Table Tags
Tag | Description |
---|---|
<table> | Defines a table |
<th> | Defines a table header |
<tr> | Defines a table row |
<td> | Defines a table cell |
<caption> | Defines a table caption |
<colgroup> | Defines a group of columns in a table, for formatting |
<col /> | Defines attribute values for one or more columns in a table |
<thead> | Groups the header content in a table |
<tbody> | Groups the body content in a table |
<tfoot> | Groups the footer content in a table |
Ref: http://www.w3schools.com/html/html_lists.asp
HTML Lists [top]
The most common HTML lists are ordered and unordered lists:
An Unordered List:
- Coffee
- Tea
- Milk
< ul>
< li>Coffee< /li>
< li>Tea< /li>
< li>Milk< /li>
< /ul>
An Ordered List:
- Coffee
- Tea
- Milk
< ol>
< li>Coffee< /li>
< li>Tea< /li>
< li>Milk< /li>
< /ol>
HTML Unordered Lists
An unordered list starts with the < ul> tag. Each list item starts with the < li> tag.
The list items are marked with bullets (typically small black circles).
< li>Coffee< /li>
< li>Milk< /li>
< /ul>
HTML Ordered Lists
An ordered list starts with the < ol> tag. Each list item starts with the < li> tag.
The list items are marked with numbers.
< li>Coffee< /li>
< li>Milk< /li>
< /ol>
HTML Definition Lists
A definition list is a list of items, with a description of each item.
The < dl> tag defines a definition list.
The < dl> tag is used in conjunction with < dt> (defines the item in the list) and < dd> (describes the item in the list):
- Coffee
- - black hot drink
- Milk
- - white cold drink
< dt>Coffee< /dt>
< dd>- black hot drink< /dd>
< dt>Milk< /dt>
< dd>- white cold drink< /dd>
< /dl>
Useful Tips
Tip: Inside a list item you can put text, line breaks, images, links, other lists, etc.
Examples:
Different types of ordered lists
Numbered list:
- Apples
- Bananas
- Lemons
- Oranges
< ol>
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ol>
Letters list:
- Apples
- Bananas
- Lemons
- Oranges
< ol type="A">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ol>
Lowercase letters list:
- Apples
- Bananas
- Lemons
- Oranges
< ol type="a">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ol>
Roman numbers list:
- Apples
- Bananas
- Lemons
- Oranges
< ol type="I">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ol>
Lowercase Roman numbers list:
- Apples
- Bananas
- Lemons
- Oranges
< ol type="i">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ol>
Different types of unordered lists
Disc bullets list:
- Apples
- Bananas
- Lemons
- Oranges
< ul type="disc">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ul>
Circle bullets list:
- Apples
- Bananas
- Lemons
- Oranges
< ul type="circle">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ul>
Square bullets list:
- Apples
- Bananas
- Lemons
- Oranges
< ul type="square">
< li>Apples< /li>
< li>Bananas< /li>
< li>Lemons< /li>
< li>Oranges< /li>
< /ul>
Nested list:
Demonstrates how you can nest lists.
A nested List:
- Coffee
- Tea
- Black tea
- Green tea
- Milk
< ul>
< li>Coffee< /li>
< li>Tea
< ul>
< li>Black tea< /li>
< li>Green tea< /li>
< /ul>
< /li>
< li>Milk< /li>
< /ul>
Nested list 2:
Demonstrates a more complicated nested list.
A nested List:
- Coffee
- Tea
- Black tea
- Green tea
- China
- Africa
- Milk
< ul>
< li>Coffee< /li>
< li>Tea
< ul>
< li>Black tea< /li>
< li>Green tea
< ul>
< li>China< /li>
< li>Africa< /li>
< /ul>
< /li>
< /ul>
< /li>
< li>Milk< /li>
< /ul>
HTML List Tags
Tag | Description |
---|---|
<ol> | Defines an ordered list |
<ul> | Defines an unordered list |
<li> | Defines a list item |
<dl> | Defines a definition list |
<dt> | Defines an item in a definition list |
<dd> | Defines a description of an item in a definition list |
Ref: http://www.w3schools.com/html/html_forms.asp
HTML Forms are used to select
different kinds of user input. [top]
Examples for Forms
Create text fields:
How to create text fields. The user can write text in a text field.
Note: The form itself is not visible. Also note that the default width of a text field is 20 characters.
< form action="">First name: < input type="text" name="firstname" />< br />
Last name: < input type="text" name="lastname" />
< /form>
< p>< b>Note:< /b> The form itself is not visible. Also note that the default width of a text field is 20 characters.< /p>
Create password field:
How to create a password field.
Note: The characters in a password field are masked (shown as asterisks or circles).
< form action="">Username: < input type="text" name="user" />
Password: < input type="password" name="password" />
< /form>
< p>< b>Note:< /b> The characters in a password field are masked (shown as asterisks or circles).< /p>
HTML Forms
HTML forms are used to pass data to a server.
A form can contain input elements like text fields, checkboxes, radio-buttons, submit buttons and more. A form can also contain select lists, textarea, fieldset, legend, and label elements.
The < form> tag is used to create an HTML form:
.
input elements
.
< /form>
HTML Forms - The Input Element
The most important form element is the input element.
The input element is used to select user information.
An input element can vary in many ways, depending on the type attribute. An input element can be of type text field, checkbox, password, radio button, submit button, and more.
The most used input types are described below:
Text Fields
< input type="text" /> defines a one-line input field that a user can enter text into:
< form>First name: < input type="text" name="firstname" />< br />
Last name: < input type="text" name="lastname" />
< /form>
How the HTML code above looks in a browser:
Note: The form itself is not visible. Also note that the default width of a text field is 20 characters.
Password Field
< input type="password" /> defines a password field:
< form>Password: < input type="password" name="pwd" />
< /form>
How the HTML code above looks in a browser:
Note: The characters in a password field are masked (shown as asterisks or circles).
Radio Buttons
< input type="radio" /> defines a radio button. Radio buttons let a user select ONLY ONE of a limited number of choices:
< form>< input type="radio" name="sex" value="male" /> Male< br />
< input type="radio" name="sex" value="female" /> Female
< /form>
How the HTML code above looks in a browser:
Checkboxes
< input type="checkbox" /> defines a checkbox. Checkboxes let a user select ONE or MORE options of a limited number of choices.
< form>< input type="checkbox" name="vehicle" value="Bike" /> I have a bike< br />
< input type="checkbox" name="vehicle" value="Car" /> I have a car
< /form>
How the HTML code above looks in a browser:
Submit Button
< input type="submit" /> defines a submit button.
A submit button is used to send form data to a server. The data is sent to the page specified in the form's action attribute. The file defined in the action attribute usually does something with the received input:
Username: < input type="text" name="user" />
< input type="submit" value="Submit" />
< /form>
How the HTML code above looks in a browser:
If you type some characters in the text field above, and click the "Submit" button, the browser will send your input to a page called "html_form_action.asp". The page will show you the received input.
More Input Examples
How to create radio buttons.
< form action="">< input type="radio" name="sex" value="male" /> Male< br />
< input type="radio" name="sex" value="female" /> Female
< /form>
< p>< b>Note:< /b> When a user clicks on a radio-button, it becomes checked, and all other radio-buttons with equal name become unchecked.< /p>
How the HTML code above looks in a browser:
Note: When a user clicks on a radio-button, it becomes checked, and all other radio-buttons with equal name become unchecked.
How to create checkboxes.
A user can select or unselect a checkbox.
< form action="">< input type="checkbox" name="vehicle" value="Bike" /> I have a bike< br />
< input type="checkbox" name="vehicle" value="Car" /> I have a car
< /form>
How the HTML code above looks in a browser:
How to create a simple drop-down list.
< form action="">< select name="cars">
< option value="volvo">Volvo< /option>
< option value="saab">Saab< /option>
< option value="fiat">Fiat< /option>
< option value="audi">Audi< /option>
< /select>
< /form>
How the HTML code above looks in a browser:
How to create a drop-down list with a pre-selected value.
< form action="">< select name="cars">
< option value="volvo">Volvo< /option>
< option value="saab">Saab< /option>
< option value="fiat" selected="selected">Fiat< /option>
< option value="audi">Audi< /option>
< /select>
< /form>
How the HTML code above looks in a browser:
How to create a multi-line text input control.
In a text-area the user can write an unlimited number of characters.
< p>This example cannot be edited
because our editor uses a textarea
for input,
and your browser does not allow
a textarea inside a textarea.
< /p>
< textarea rows="10" cols="30">
The cat was playing in the garden.
< /textarea>
How the HTML code above looks in a browser:
This example cannot be edited because our editor uses a textarea for input, and your browser does not allow a textarea inside a textarea.
How to create a button.
< form action="">< input type="button" value="Hello world!">
< /form>
How the HTML code above looks in a browser:
Form Examples
Fieldset around form-data
How to create a border around elements in a form.
< form action="">< fieldset>
< legend>Personal information:< /legend>
Name: < input type="text" size="30" />
E-mail: < input type="text" size="30" />
Date of birth: < input type="text" size="10" />
< /fieldset>
< /form>
How the HTML code above looks in a browser:
How to create a form with two text fields and a submit button.
< form name="input" action="html_form_action.asp" method="get">First name: < input type="text" name="FirstName" value="Mickey" />< br />
Last name: < input type="text" name="LastName" value="Mouse" />< br />
< input type="submit" value="Submit" />
< /form>
< p>If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".< /p>
How the HTML code above looks in a browser:
If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".
How to create a form with two checkboxes and a submit button.
< form name="input" action="html_form_action.asp" method="get">< input type="checkbox" name="vehicle" value="Bike" /> I have a bike< br />
< input type="checkbox" name="vehicle" value="Car" /> I have a car
< br />< br />
< input type="submit" value="Submit" />
< /form>
< p>If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".< /p>
How the HTML code above looks in a browser:
If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".
How to create a form with two radio buttons, and a submit button.
< form name="input" action="html_form_action.asp" method="get">< input type="radio" name="sex" value="male" /> Male< br />
< input type="radio" name="sex" value="female" /> Female< br />
< input type="submit" value="Submit" />
< /form>
< p>If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".< /p>
How the HTML code above looks in a browser:
If you click the "Submit" button, the form-data will be sent to a page called "html_form_action.asp".
How to send e-mail from a form
< h3>Send e-mail to someone@example.com:< /h3>< form action="MAILTO:someone@example.com" method="post" enctype="text/plain">
Name:< br />
< input type="text" name="name" value="your name" />< br />
E-mail:< br />
< input type="text" name="mail" value="your email" />< br />
Comment:< br />
< input type="text" name="comment" value="your comment" size="50" />
< br />< br />
< input type="submit" value="Send">
< input type="reset" value="Reset">
< /form>
How the HTML code above looks in a browser:
Send e-mail to someone@example.com:
HTML Form Tags
Tag | Description |
---|---|
<form> | Defines an HTML form for user input |
<input /> | Defines an input control |
<textarea> | Defines a multi-line text input control |
<label> | Defines a label for an input element |
<fieldset> | Defines a border around elements in a form |
<legend> | Defines a caption for a fieldset element |
<select> | Defines a select list (drop-down list) |
<optgroup> | Defines a group of related options in a select list |
<option> | Defines an option in a select list |
<button> | Defines a push button |
Ref: http://www.w3schools.com/html/html_frames.asp
HTML Frames [top]
With frames, several Web pages can be displayed in the same browser window.
ATTENTION. Do not expect frames to be supported in future versions of HTML.
With frames, you can display more than one HTML document in the same browser window. Each HTML document is called a frame, and each frame is independent of the others.
The disadvantages of using frames are:
• Frames are not expected to be supported in future versions of HTML
• Frames are difficult to use. (Printing the entire page is difficult).
• The web developer must keep track of more HTML documents
The HTML frameset Element
The frameset element holds one or more frame elements. Each frame element can hold a separate document.
The frameset element states HOW MANY columns or rows there will be in the frameset, and HOW MUCH percentage/pixels of space will occupy each of them.
The HTML frame Element
The < frame> tag defines one particular window (frame) within a frameset.
In the example below we have a frameset with two columns.
The first column is set to 25% of the width of the browser window. The second column is set to 75% of the width of the browser window. The document "frame_a.htm" is put into the first column, and the document "frame_b.htm" is put into the second column:
< frameset cols="25%,75%">
< frame src="frame_a.htm" />
< frame src="frame_b.htm" />
< /frameset>
Note: The frameset column size can also be set in pixels (cols="200,500"), and one of the columns can be set to use the remaining space, with an asterisk (cols="25%,*").
Basic Notes - Useful Tips
Tip: If a frame has visible borders, the user can resize it by dragging the border. To prevent a user from doing this, you can add noresize="noresize" to the < frame> tag.
Note: Add the < noframes> tag for browsers that do not support frames.
Important: You cannot use the < body>< /body> tags together with the < frameset>< /frameset> tags! However, if you add a < noframes> tag containing some text for browsers that do not support frames, you will have to enclose the text in < body>< /body> tags! See how it is done in the first example below.
More Examples
How to use the < noframes> tag (for browsers that do not support frames).
HTML Frame Tags
Tag | Description |
---|---|
< frameset> | Defines a set of frames |
< frame /> | Defines a sub window (a frame) |
< noframes> | Defines a noframe section for browsers that do not handle frames |
Ref: http://www.w3schools.com/html/html_iframe.asp
HTML Iframes [top]
An iframe is used to display a web page within a web page.
Syntax for adding an iframe:
< iframe src="URL">< /iframe>
The URL points to the location of the separate page.
Iframe - Set Height and Width
The height and width attributes are used to specify the height and width of the iframe.
The attribute values are specified in pixels by default, but they can also be in percent (like "80%").
Example
< iframe src="demo_iframe.htm" width="200" height="200">< /iframe>
Some older browsers don't support iframes.
If they don't, the iframe will not be visible.
< iframe src="demo_iframe.htm" width="200" height="200">< /iframe>
< p>Some older browsers don't support iframes.< /p>
< p>If they don't, the iframe will not be visible.< /p>
Iframe - Remove the Border
The frameborder attribute specifies whether or not to display a border around the iframe.
Set the attribute value to "0" to remove the border:
Example
< iframe src="demo_iframe.htm" frameborder="0">< /iframe>
Some older browsers don't support iframes.
If they don't, the iframe will not be visible.
< iframe src="demo_iframe.htm" frameborder="0">< /iframe>< p>Some older browsers don't support iframes.< /p>
< p>If they don't, the iframe will not be visible.< /p>
Use iframe as a Target for a Link
An iframe can be used as the target frame for a link.
The target attribute of a link must refer to the name attribute of the iframe:
Example
< iframe src="demo_iframe.htm" name="iframe_a">< /iframe>
< p>< a href="http://www.w3schools.com" target="iframe_a">W3Schools.com< /a>< /p>
Note: Because the target of the link matches the name of the iframe, the link will open in the iframe.
HTML iframe Tag
Tag | Description |
---|---|
<iframe> | Defines an inline sub window (frame) |
Ref: http://www.w3schools.com/html/html_colors.asp
Colors are displayed combining RED, GREEN, and BLUE light.
Colors in HTML - Color Values [top]
HTML colors are defined using a hexadecimal notation (HEX) for the combination of Red, Green, and Blue color values (RGB).
The lowest value that can be given to one of the light sources is 0 (in HEX: 00). The highest value is 255 (in HEX: FF).
HEX values are specified as 3 pairs of two-digit numbers, starting with a # sign.
Color Values
Color | Color HEX | Color HEX | ||
---|---|---|---|---|
#000000 | rgb(0,0,0) | |||
#FF0000 | rgb(255,0,0) | |||
#00FF00 | rgb(0,255,0) | |||
#0000FF | rgb(0,0,255) | |||
#FFFF00 | rgb(255,255,0) | |||
#00FFFF | rgb(0,255,255) | |||
#FF00FF | rgb(255,0,255) | |||
#C0C0C0 | rgb(192,192,192) | |||
|
|
Example
Color set by using color name
< p style="background-color:yellow">Color set by using color name < /p>
16 Million Different Colors
The combination of Red, Green, and Blue values from 0 to 255, gives more than 16 million different colors (256 x 256 x 256).
If you look at the color table below, you will see the result of varying the red light from 0 to 255, while keeping the green and blue light at zero.
To see the full list of color mixes when RED varies from 0 to 255, click on one of the HEX or RGB values below.
Note: To colour a cell a particular colour, use the background color instruction:
< td bgcolor="#400000"> < /td>
Red Light | Color HEX | Color RGB |
---|---|---|
#000000 |
rgb(0,0,0) | |
#080000 | rgb(8,0,0) | |
#100000 | rgb(16,0,0) | |
#180000 | rgb(24,0,0) | |
#200000 | rgb(32,0,0) | |
#280000 | rgb(40,0,0) | |
#300000 | rgb(48,0,0) | |
#380000 | rgb(56,0,0) | |
#400000 | rgb(64,0,0) | |
#480000 | rgb(72,0,0) | |
#500000 | rgb(80,0,0) | |
#580000 | rgb(88,0,0) | |
#600000 | rgb(96,0,0) | |
#680000 | rgb(104,0,0) | |
#700000 | rgb(112,0,0) | |
#780000 | rgb(120,0,0) | |
#800000 | rgb(128,0,0) | |
#880000 | rgb(136,0,0) | |
#900000 | rgb(144,0,0) | |
#980000 | rgb(152,0,0) | |
#A00000 | rgb(160,0,0) | |
#A80000 | rgb(168,0,0) | |
#B00000 | rgb(176,0,0) | |
#B80000 | rgb(184,0,0) | |
#C00000 | rgb(192,0,0) | |
#C80000 | rgb(200,0,0) | |
#D00000 | rgb(208,0,0) | |
#D80000 | rgb(216,0,0) | |
#E00000 | rgb(224,0,0) | |
#E80000 | rgb(232,0,0) | |
#F00000 | rgb(240,0,0) | |
#F80000 |
rgb(248,0,0) | |
#FF0000 | rgb(255,0,0) |
Shades of Gray
Gray colors are created by using an equal amount of power to all of the light sources.
To make it easier for you to select the correct shade, we have created a table of gray shades for you:
Fpr example:
#303030 rgb(48,48,48)
Web Safe Colors?
Some years ago, when computers supported max 256 different colors, a list of 216 "Web Safe Colors" was suggested as a Web standard, reserving 40 fixed system colors.
The 216 cross-browser color palette was created to ensure that all computers would display the colors correctly when running a 256 color palette.
This is not important today, since most computers can display millions of different colors.
Ref: http://www.w3schools.com/html/html_colornames.asp
Color Names Supported by All Browsers [top]
147 color names are defined in the HTML and CSS color specification (17 standard colors plus 130 more). The table below lists them all, along with their hexadecimal values.
Tip: The 17 standard colors are: aqua, black, blue, fuchsia, gray, grey, green, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow.
Here they are listed:
AliceBlue AntiqueWhite Aqua Aquamarine Azure Beige Bisque Black BlanchedAlmond Blue BlueViolet Brown BurlyWood CadetBlue Chartreuse Chocolate Coral CornflowerBlue Cornsilk Crimson Cyan DarkBlue DarkCyan DarkGoldenRod DarkGray DarkGrey DarkGreen DarkKhaki DarkMagenta DarkOliveGreen Darkorange DarkOrchid DarkRed DarkSalmon DarkSeaGreen DarkSlateBlue DarkSlateGray DarkSlateGrey DarkTurquoise DarkViolet DeepPink DeepSkyBlue DimGray DimGrey DodgerBlue FireBrick FloralWhite ForestGreen Fuchsia Gainsboro GhostWhite Gold GoldenRod Gray Grey Green GreenYellow HoneyDew HotPink IndianRed Indigo Ivory Khaki Lavender LavenderBlush LawnGreen LemonChiffon LightBlue LightCoral LightCyan LightGoldenRodYellow LightGray LightGrey LightGreen LightPink LightSalmon LightSeaGreen LightSkyBlue LightSlateGray LightSlateGrey LightSteelBlue LightYellow Lime LimeGreen Linen Magenta Maroon MediumAquaMarine MediumBlue MediumOrchid MediumPurple MediumSeaGreen MediumSlateBlue MediumSpringGreen MediumTurquoise MediumVioletRed MidnightBlue MintCream MistyRose Moccasin NavajoWhite Navy OldLace Olive OliveDrab Orange OrangeRed Orchid PaleGoldenRod PaleGreen PaleTurquoise PaleVioletRed PapayaWhip PeachPuff Peru Pink Plum PowderBlue Purple Red RosyBrown RoyalBlue SaddleBrown Salmon SandyBrown SeaGreen SeaShell Sienna Silver SkyBlue SlateBlue SlateGray SlateGrey Snow SpringGreen SteelBlue Tan Teal Thistle Tomato Turquoise Violet Wheat White WhiteSmoke Yellow YellowGreen
HTML 4.01 Quick List [top]
Ref: http://www.w3schools.com/html/html_quick.asp
This is a very useful list that covers almost everything. I will simply leave it as the abpve link.
Here it is as a downloadable Word document