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php.cn手册 发布
文字
语法：
E:last-child { sRules }
说明：
匹配父元素的最后一个子元素E。
要使该属性生效，E元素必须是某个元素的子元素，E的父元素最高是body，即E可以是body的子元素
E:last-child选择符，E必须是它的兄弟元素中的最后一个元素，换言之，E必须是父元素的最后一个子元素。与之类似的伪类还有E:first-child，只不过情况正好相反，需要它是第一个子元素。
通过具体的例子来进行理解：
有效的代码：
p:last-child{color:#f00;} <div> <h2>我是一个标题</h2> <p>我是一个p</p> </div>无效的代码：
p:last-child{color:#f00;} <div> <p>我是一个p</p> <h2>我是一个标题</h2> </div>在上述代码中，如果我们要设置第一个li的样式，那么代码应该写成
li:first-child{sRules}，而不是ul:first-child{sRules}。
兼容性：
| IE | Firefox | Chrome | Safari | Opera | iOS Safari | Android Browser | Android Chrome |
|---|---|---|---|---|---|---|---|
| 6.0-8.0 | 2.0+ | 4.0+ | 3.1+ | 3.5+ | 3.2+ | 2.1+ | 18.0+ |
| IE9.0+ |
示例：
实例
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title>结构性伪类选择符 E:last-child_CSS参考手册_web前端开发参考手册系列</title>
<meta name="author" content="Joy Du(飘零雾雨), dooyoe@gmail.com, www.doyoe.com" />
<style>
h1 {
font-size: 16px;
}
li:last-child {
color: #f00;
}
</style>
</head>
<body>
<h1>注意是li:last-child，而不是ul:last-child</h1>
<ul>
<li>结构性伪类选择符 E:last-child</li>
<li>结构性伪类选择符 E:last-child</li>
<li>结构性伪类选择符 E:last-child</li>
<li>结构性伪类选择符 E:last-child</li>
</ul>
</body>
</html>
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