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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
counters() = [ counters(name, string) | counters(name, string, list-style-type) ]{1,}
在CSS2.1中counters()只能被使用在content属性上。
counters()类似于重复使用了counter(),来看个示例
HTML:
<ol class="test"> <li>Node <ol> <li>Node</li> <li>Node</li> </ol> </li> <li>Node</li> <li>Node</li> </ol>
counters():
ol { counter-reset: item; } li:before { counter-increment: item; content: counters(item, "."); }
counter():
.test2 { counter-reset: item; } .test2 li { counter-increment: item; } .test2 li:before { content: counter(item)"."; } .test2 li li { counter-increment: subitem; } .test2 li li:before { content: counter(item)"."counter(subitem); }
从上述代码可以看出,counters()适合使用在需要继承的章节上,而counter()更适合用在独立的计数场景上。
IE | Firefox | Chrome | Safari | Opera | iOS Safari | Android Browser | Android Chrome |
---|---|---|---|---|---|---|---|
6.0-7.0 | 2.0+ | 4.0+ | 3.1+ | 3.5+ | 3.2+ | 2.1+ | 18.0+ |
8.0+ |
<!DOCTYPE html> <html lang="zh-cmn-Hans"> <head> <meta charset="utf-8" /> <title>counters()函数_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> ol { margin: 0; padding: 0 0 0 2em; list-style: none; counter-reset: item; } li:before { counter-increment: item; content: counters(item, "."); color: #f00; } </style> </head> <body> <ol class="test"> <li>Node <ol> <li>Node <ol> <li>Node</li> <li>Node</li> <li>Node</li> </ol> </li> <li>Node</li> </ol> </li> <li>Node</li> <li>Node</li> </ol> </body> </html>
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