嵌套计数器

嵌套计数器

以下实例在页面创建一个计数器，在每一个 <h1> 元素前添加计数值 "Section <主标题计数值>.", 嵌套的计数值则放在 <h2> 元素的前面，内容为 "<主标题计数值>.<副标题计数值>":

CSS 实例

body {

counter-reset: section;}

h1 {

counter-reset: subsection;}

h1::before {

counter-increment: section;

content: "Section " counter(section) ". ";}

h2::before {

counter-increment: subsection;

content: counter(section) "." counter(subsection) " ";

}