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| <!DOCTYPE html>
<head>
<meta charset="utf-8" />
<title>菜单</title>
<style type='text/css'>
.container {
display: inline-block;
cursor: pointer;
}
/*这就生成了三横杠的菜单*/
.bar1, .bar2, .bar3 {
width: 35px;
height: 5px;
background-color:
margin: 6px 0;
transition: 0.4s;
}
.change .bar1 {
-webkit-transform: rotate(-45deg) translate(-9px, 6px);
transform: rotate(-45deg) translate(-9px, 6px);
}
.change .bar2 {
opacity: 0;
}
.change .bar3 {
-webkit-transform: rotate(45deg) translate(-8px, -8px);
transform: rotate(45deg) translate(-8px, -8px);
}
</style>
<script type="text/javascript">
function myFunction(x) {
x.classList.toggle("change");
}
</script>
</head>
<body>
<p>点击菜单按钮变为 "X":</p>
<div class="container" onclick="myFunction(this)">
<div class="bar1"></div>
<div class="bar2"></div>
<div class="bar3"></div>
</div>
</body>
|