• 类选择器 | Class selectors (Selectors) - CSS 中文开发手册
    CSS 类选择器根据其class属性的内容匹配元素。
    /* All elements with class="spacious" */.spacious { margin: 2em; } /* All <li> elements with class="spacious" */ li.spacious { margin: 2em; }
  • 语法
    .class_name { style properties }
    请注意，这相当于以下内容attribute selector：
    [class~=class_name] { style properties }
    实例
    CSS
    div.classy { background-color: skyblue; }
  • HTML
    <div class="classy">This div has a special class on it!</div><div>This is just a regular div.</div>
  • 结果
    规范

Specification

Status

Comment

Selectors Level 4The definition of 'class selectors' in that specification.

Working Draft

No changes

Selectors Level 3The definition of 'class selectors' in that specification.

Recommendation

​

CSS Level 2 (Revision 1)The definition of 'child selectors' in that specification.

Recommendation

​

CSS Level 1The definition of 'child selectors' in that specification.

Recommendation

Initial definition

  • 浏览器兼容性

Feature

Chrome

Edge

Firefox (Gecko)

Internet Explorer

Opera

Safari

Basic support

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)

(Yes)


Feature

Android

Chrome for Android

Edge

Firefox Mobile (Gecko)

IE Mobile

Opera Mobile

Safari Mobile

Basic support

?

?

(Yes)

?

?

?

?