JSFiddle - React, Tailwind, and code Playground

by booktu8

HTML

<input id="btn" type="button" value="更多"/>
<div id="div1">
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</div>

CSS

#div1{
  width:50px;
  height:100px;
  background:#ccc;
  display:none;
}

JavaScript

var obtn=document.getElementsById('btn');
var odiv=document.getElementsById('div1');
obtn.onclick=function(){
if(odiv.style.display=='none'){
 odiv.style.display='block';
}
else{
odiv.style.display='none';
}
}