css的:first-child伪类选择器用法介绍_html/css

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css的:first-child伪类选择器用法介绍_html/css_WEB-ITnose

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Jun 24, 2016 am 11:30 AM

css的:first-child伪类选择器用法介绍:
此选择器能够匹配元素集合中第一个元素。
:first-child伪类选择器要和其他选择器配合使用，例如:

li:first-child

以上代码可以匹配li元素集合中第一个li元素。
代码实例如下:

<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="author" content="http://www.softwhy.com/" /><title>蚂蚁部落</title><style type="text/css">li:first-child{color:green;}</style></head><body><ul>  <li>html专区</li>  <li>Div+css专区</li>  <li>Jquery专区</li>  <li>Javascript专区</li></ul></body></html>

以上代码可以将li元素集合中第一个li元素中的字体颜色设置为绿色。

原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=11765

更多内容可以参阅:http://www.softwhy.com/divcss/

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