|
<script type="text/javascript">
<!--
function toggle(targetid){
if (document.getelementbyid){
target=document.getelementbyid(targetid);
if (target.style.display=="block"){
target.style.display="none";
} else {
target.style.display="block";
}
}
}
-->
</script>
<style type="text/css">
<!--
#div1{
background-color:#000000;
height:400px;
width:400px;
display:none;
}
-->
</style>
</head>
<body>
<input type="button" id="butn" value="显示/隐藏" onclick="toggle('div1')" />
<center>
<div id="div1"></div></center>
居中的div
</body>
</html>
|
