<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>js控制div样式</title>
<style type="text/css">
#box{
width: 100px;
height: 100px;
background: red;
margin: 20px 80px;
}
</style>
</head>
<body>
<div id="box"></div>
<input type="button" name="" id="" value="改变高度" onclick="change(value)"/>
<input type="button" name="" id="" value="改变宽度" onclick="change(value)"/>
<input type="button" name="" id="" value="改变颜色" onclick="change(value)"/>
<input type="button" name="" id="" value="重置" onclick="change(value)"/>
<input type="button" name="" id="" value="隐藏" onclick="change(value)"/>
<input type="button" name="" id="" value="显示" onclick="change(value)"/>
<script type="text/javascript">
var box=document.getElementById("box");
function change (value) {
if (value=="改变高度") {
box.style.height="400px";
} else if(value=="改变宽度"){
box.style.width="400px";
} else if (value=="改变颜色") {
box.style.backgroundColor="pink";
} else if(value=="重置"){
box.style.height="100px";
box.style.width="100px";
box.style.background="red";
} else if (value=="隐藏") {
box.style.display="none";
} else if (value=="显示") {
box.style.display="block";
}
}
</script>
</body>
</html>
