Examples
Usingclassin HTML documentsAttributes:
Header 1
A paragraph.
Note that this is an important paragraph.
Definition and usage
The class attribute specifies elements The class name (classname).
The class attribute is most often used to point to a class in a style sheet. However, it can also be used to change HTML elements with specified classes throughJavaScript.
Tips andNotes
Note: The class attribute cannot be used in the following HTML elements: base, head, html, meta, param, script, style and title.
Tip: You can assign multiple classes to HTML elements, for example:
Tip: The class name cannot start with a number! Only Internet Explorer supports this practice.
Browser Support
W3C: The "W3C" column indicates whether the attribute is defined in the W3C's HTML/XHTML recommendations.
IE | Firefox | Opera | Safari | W3C |
YES | YES | YES | YES | YES |
Syntax
Attribute value
Value | Description |
classname | Specifies the name of the element's class. To specify multiple classes for an element, separate the class names with spaces. |
Example
连接div标签与dreamdu1样式使用空格分开多个样式连接div标签Copy after logindiv.dreamdu12px{ font-size: 12px;} div.dreamdublack{ color: black;} div.dreamdubold{ font-weight: bold;}Copy after loginYou can use multiple classnames, but they must be separated by spaces
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