content · CSS 3.0参考手册.chm

# content **版本：CSS3** 继承性：无 ### 语法： **content** ： normal | string | attr() | uri() | counter() ### 取值： normal：默认值。string：插入文本内容。attr()：插入元素的属性值。uri()：插入一个外部资源（图像，声频，视频或浏览器支持的其他任何资源）。counter()：计数器，用于插入排序标识。 ### 说明： content用于插入生成内容； content属性与 :before 及 :after 伪元素配合使用，将生成内容放在一个元素内容的前面或后面。 ### 兼容性： <table><thead><tr><th class="type">类型</th> <th class="type_ie"><img src="https://box.kancloud.cn/2015-09-02_55e5d389e3b3d.png" alt="IE" />Internet Explorer</th> <th class="type_firefox"><img src="https://box.kancloud.cn/2015-09-02_55e5d389ed305.png" alt="Firefox" />Firefox</th> <th class="type_chrome"><img src="https://box.kancloud.cn/2015-09-02_55e5d38a017ac.png" alt="Chrome" />Chrome</th> <th class="type_opera"><img src="https://box.kancloud.cn/2015-09-02_55e5d38a0ac40.png" alt="Opera" />Opera</th> <th class="type_safari"><img src="https://box.kancloud.cn/2015-09-02_55e5d38a11b78.png" alt="Safari" />Safari</th> </tr></thead><tbody><tr><td rowspan="4" class="version">版本</td> <td class="support no"><span>(×)</span>IE6</td> <td class="support no"><span>(×)</span>Firefox 2.0</td> <td class="support no"><span>(×)</span>Chrome 1.0.x</td> <td class="support no"><span>(×)</span>Opera 9.63</td> <td class="support yes"><span>(√)</span>Safari 3.1</td> </tr><tr><td class="support no"><span>(×)</span>IE7</td> <td class="support yes"><span>(√)</span>Firefox 3.0</td> <td class="support no"><span>(×)</span>Chrome 2.0.x</td> <td></td> <td class="support yes"><span>(√)</span>Safari 4</td> </tr><tr><td class="support yes"><span>(√)</span>IE8</td> <td class="support yes"><span>(√)</span>Firefox 3.5</td> <td></td> <td></td> <td></td> </tr><tr><td></td> <td></td> <td></td> <td></td> <td></td> </tr></tbody></table> ### 示例： ![](https://box.kancloud.cn/2015-09-02_55e5d38a1cc54.png) <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta http-equiv="Content-Language" content="utf-8" /><meta name="robots" content="all" /><meta name="author" content="Tencent-ISRD" /><meta name="Copyright" content="Tencent" /><title>content</title><style type="text/css">.example { width:400px; height:50px; line-height:50px; overflow:hidden; text-align:center; color:#FF0000; border:#993300 solid 1px; }#example_01:before { content:"您使用的浏览器支持content属性"; }</style></head><body><div id="example_01" class="example"></div></body></html> 复制代码 Copyright © 2009 [Tencent ISD webteam](http://webteam.tencent.com/). All Rights Reserved ### 快速跳转 - [语法](# "跳转到“语法”") - [取值](# "跳转到“取值”") - [说明](# "跳转到“说明”") - [兼容性](# "跳转到“兼容性”") - [示例](# "跳转到“示例”")