<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title> 自定义滚动条</title>
<style>
#div1 input{
background: #fff;
}
#div1 input.active{
background: yellow;
}
#div1 div{
200px;
height: 200px;
background: #ccc;
display: none;
}
</style>
<script>
window.onload=function(){
var oDiv=document.getElementById('div1');
var aBtn=oDiv.getElementsByTagName('input');
var aDiv=oDiv.getElementsByTagName('div');
for(var i=0;i<aBtn.length;i++){
aBtn[i].index=i;
aBtn[i].onclick=function(){
for(var i=0;i<aBtn.length;i++){
aBtn[i].className='';
aDiv[i].style.display='none';
}
this.className='active';
aDiv[this.index].style.display='block';
}
}
}
</script>
</head>
<body>
<div id="div1">
<input class="active" type="button" value="aaa"/>
<input type="button" value="bbb"/>
<input type="button" value="ccc"/>
<div style="display: block;">aaa</div>
<div>bbb</div>
<div>ccc</div>
</div>
</body>
</html>