CSS在线开发手册

实例

对部分和子部分进行编号（比如 "Section 1"、"1.1"、"1.2"）的方法：

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) " ";
 }