JSFiddle - React, Tailwind, and code Playground

by Zhang Xuexiang

HTML

<body>
  <div>
    <div id="content">
      居中蓄力中
    </div>
  </div>
</body>

CSS

#content {
  position: absolute; 
  left: 0; 
  right: 0; 
  margin-left: auto; 
  margin-right: auto; 
  width: 100px; /* 要设定宽度 */
}