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<title>鼠標懸浮菜單能夠出現二級菜單</title>
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a {
color: #fff;
text-decoration: none;
}
ul {
margin: 0;
list-style: none;
}
#menu {
width: 500px;
height: 60px;
background: #06F;
border-radius: 6px;
box-shadow: 2px 2px 5px #0066FF;
}
#menu li {
float: left;
margin-top: 10px;
line-height: 22px;
padding: 0;
position: relative;
}
#menu li a {
padding: 10px 20px;
display: inline-block;
}
#menu li .hover {
background: #fff;
opacity: 0.5;
color: #06F;
border-radius: 5px;
}
#menu li .lis {
width: 300px;
height: 40px;
line-height: 40px;
border-radius: 5px;
background: #FC6;
position: absolute;
top: 70px;
}
#menu li .lis a {
padding: 0 10px;
background: none;
opacity: 1;
color: #fff;
}
#menu li .lis a:hover {
text-decoration: underline;
}
</style>
<script>
window.onload = function() {
var oUl = document.getElementById('menu');
var aLi = oUl.getElementsByTagName('li');
var aDiv = oUl.getElementsByTagName('div');
var timer = null;
for (var i = 0; i < aLi.length; i++) {
var oA = aLi[i].getElementsByTagName('a')[0];
oA.index = i;
clearTimeout(timer);
oA.onmouseover = function() {
this.className = 'hover';
aDiv[this.index].style.display = 'block';
}
oA.onmouseout = function() {
this.className = '';
n = this.index;
timer = setTimeout(function() {
aDiv[n].style.display = 'none';
}, 200);
}
aDiv[i].onmouseover = function() {
clearTimeout(timer);
this.style.display = 'block';
}
aDiv[i].onmouseout = function() {
this.style.display = 'none';
}
}
}
</script>
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