HTML class Attribute
 HTML Standard Attributes
Definition and Usage
The class attribute specifies a subtype for the element.
The class attribute is mostly used with CSS to style elements. It can also be
used with JavaScript (using the HTML DOM) to change the
HTML element with the specified class.
It is possible to assign multiple classes to an element by using space as a
separator in the class attribute. This allows you to combine several CSS styles for an
element.
Syntax
<element class="class">Some text or element</element>
OR
<element class="class" />
|
| Parameter |
Description |
| class |
Required. The class/subtype of the element. Naming rules:
- Must begin with a letter (A-Z or a-z) or number (0-9)
- Can be followed by: letters (A-Za-z), digits (0-9), hyphens ("-"),
underscores ("_"), colons (":"), and periods (".")
|
| element |
Required. The HTML element using the class. The class attribute
can be used on almost all HTML elements.
Exceptions:
- base
- head
- html
- meta
- param
- script
- style
- title
|
Support
W3C: The "W3C" column indicates whether or not the
attribute is defined in the W3C HTML/XHTML recommendation.
| Internet Explorer |
Firefox |
Opera |
Safari |
W3C |
| YES |
YES |
YES |
YES |
YES |
Example
<html>
<head>
<style>
.text
{
text-align:center;
}
</head>
<body>
<p class="text">Hello. Welcome to W3Schools.</p>
<p class="text">A text example using classes.</p>
</body>
</html>
|
Try-It-Yourself Demos
The class
attribute and CSS
How to use the class attribute with a CSS stylesheet.
Assigning multiple classes to an element
How to use the The assigning multiple classes to an element.
HTML Standard Attributes
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