JSFiddle - React, Tailwind, and code Playground

by Kang Yuan

HTML

<h1>大标题</h1>
<p>文字</p>
<h1>大标题</h1>
<p>文字</p>
<h1>大标题</h1>
<p>文字</p>
<h1>大标题</h1>
<p>文字</p>

CSS

h1:before{
    content:counter(my)'.';
}
h1{
    counter-increment:my;
}