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初学JS值之用JS实现鼠标移入移出事件

2016-10-29 18:04 519 查看
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>初学JS</title>
<style>
#webo{
width:82px;
height:123px;
}
li{
list-style:none;
}

#list{
width:80px;
height:	30px;
position: relative;
}

a{
color:black;
text-decoration:none;
display: block;
line-height: 30px;
text-align: center;
background: white;
}

#list1{
margin:0;
padding:0;
width:80px;
display: none;
}

#list1 li{
line-height:30px;
text-align: center;
border:	1px solid orange;
border-top:none;
}

</style>
</head>
<body>
<div id="webo">
<ul>
<li id="list">
<a id="link" href="#">微博</a>
</li>
<ul id="list1">
<li><a id="sx" href="#">私信</a></li>
<li><a id="pl" href="#">评论</a></li>
<li><a id="zw" href="#">@我</a></li>
</ul>
</ul>
</div>
<script>
document.getElementById("list").onmouseover=show;
document.getElementById("list").onmouseout=hide;

function show(){
document.getElementById("list1").style.display="block";
document.getElementById("link").style.background="darkorange";
}

function hide(){
document.getElementById("list1").style.display="none";
document.getElementById("link").style.background="white";
}

</script>
</body>
</html>
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