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©
本文档使用
php.cn手册 发布
文字
语法：
content：[ [<uri> | icon] ',' ]* [ normal | none | inhibit | <content-list> ]
<content-list> = [ pending(<identifier>) | <string> | contents | footnote | endnote | section-note | list-item | <counter> | <named-string> | open-quote | close-quote | no-open-quote | no-close-quote | icon | <glyph> | <uri> | <datetime> | document-url | <target> ]+
<counter> = counter(name) | counter(name,list-style-type) | counters(name,string) | counters(name,string,list-style-type)
默认值：normal
适用于：所有元素，::before, ::after, ::alternate, ::marker, ::line-marker, margin areas, @footnote areas
继承性：无
动画性：否
计算值：指定值
取值：
normal：默认值。表现与none值相同
none：不生成任何值。
<attr>：插入标签属性值
<url>：使用指定的绝对或相对地址插入一个外部资源（图像，声频，视频或浏览器支持的其他任何资源）
<string>：插入字符串
counter(name)：使用已命名的计数器
counter(name,list-style-type)：使用已命名的计数器并遵从指定的list-style-type属性
counters(name,string)：使用所有已命名的计数器
counters(name,string,list-style-type)：使用所有已命名的计数器并遵从指定的list-style-type属性
no-close-quote：并不插入quotes属性的后标记。但增加其嵌套级别
no-open-quote：并不插入quotes属性的前标记。但减少其嵌套级别
close-quote：插入quotes属性的后标记
open-quote：插入quotes属性的前标记
说明：
用来和:after及:before伪元素一起使用，在对象前或后显示内容。
对应的脚本特性为content。
兼容性：
| Values | IE | Firefox | Chrome | Safari | Opera | iOS Safari | Android Browser | Android Chrome |
|---|---|---|---|---|---|---|---|---|
| Basic Support | 6.0-7.0 | 2.0+ | 4.0+ | 6.0+ | 15.0+ | 6.0+ | 2.1+ | 18.0+ |
| 8.0+ |
示例：
实例
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title>content_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>
.string p:after{margin-left:-16px;background:#fff;content:"是";color:#f00;}
.attr p:after{content:attr(title);}
.url p:before{content:url(../../skin/ico.png);}
.test ol{margin:16px 0;padding:0;list-style:none;}
.counter1 li{counter-increment:testname;}
.counter1 li:before{content:counter(testname);color:#f00;font-family:georgia,serif,sans-serif;}
.counter2 li{counter-increment:testname2;}
.counter2 li:before{content:counter(testname2,lower-roman);color:#f00;font-family:georgia,serif,sans-serif;}
.counter3 ol ol{margin:0 0 0 28px;}
.counter3 li{padding:2px 0;counter-increment:testname3;}
.counter3 li:before{content:counter(testname3,decimal)".";color:#f00;font-family:georgia,serif,sans-serif;}
.counter3 li li{counter-increment:testname4;}
.counter3 li li:before{content:counter(testname3,decimal)"."counter(testname4,decimal)".";}
.counter3 li li li{counter-increment:testname5;}
.counter3 li li li:before{content:counter(testname3,decimal)"."counter(testname4,decimal)"."counter(testname5,decimal)".";}
</style>
</head>
<body>
<ul class="test">
<li class="string">
<strong>string：</strong>
<p>你的浏览器是否支持content属性：否</p>
</li>
<li class="attr">
<strong>attr：</strong>
<p title="如果你看到我则说明你目前使用的浏览器支持content属性"></p>
</li>
<li class="url">
<strong>url()：</strong>
<p>如果你看到文字前面的图标则说明你目前使用的浏览器支持content属性</p>
</li>
<li class="counter1">
<strong>counter(name)：</strong>
<ol>
<li>列表项</li>
<li>列表项</li>
<li>列表项</li>
</ol>
</li>
<li class="counter2">
<strong>counter(name,list-style-type)：</strong>
<ol>
<li>列表项</li>
<li>列表项</li>
<li>列表项</li>
</ol>
</li>
<li class="counter3">
<strong>counter(name)拓展应用：</strong>
<ol>
<li>列表项
<ol>
<li>列表项
<ol>
<li>列表项</li>
<li>列表项</li>
</ol>
</li>
<li>列表项</li>
</ol>
</li>
<li>列表项
<ol>
<li>列表项</li>
<li>列表项</li>
</ol>
</li>
<li>列表项
<ol>
<li>列表项</li>
<li>列表项</li>
</ol>
</li>
</ol>
</li>
</ul>
</body>
</html>
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