Paste_Image.png
闲话不多说，直接上代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.accordionMenu{
background: #fff;
color: #424242;
font: 12px Arial,Verdana,sans-serif;
margin: 0 auto;
padding: 10px;
width: 500px;
}
.accordionMenu h2{
margin: 5px 0;
padding: 0;
position: relative;
}
.accordionMenu h2:before{
border: 5px solid transparent;
border-top-color: #fff;
content: '';
height: 0;
position: absolute;
right: 10px;
top: 15px;
width: 0;
}
.accordionMenu h2 a{
background: #8f8f8f;
border-radius: 5px;
color: #424242;
display: block;
font-size: 13px;
font-weight: normal;
margin: 0;
padding: 10px;
text-shadow: 2px 2px 2px #aeaeae;
text-decoration: none;
}
.accordionMenu :target h2 a,
.accordionMenu h2 a:focus,
.accordionMenu h2 a:hover,
.accordionMenu h2 a:active{
background: #2288dd;
color: #ffffff;
}
.accordionMenu p{
margin: 0;
height: 0;
overflow: hidden;
padding: 0 10px;
transition: height 0.5s ease-in;
}
.accordionMenu :target p{
height: 100px;
overflow: auto;
}
.accordionMenu :target h2:before{
border-color: transparent transparent transparent #fff;
}
</style>
</head>
<body>
<div class="accordionMenu">
<div class="menuSection" id="brand">
<h2><a href="#brand">Brand</a></h2>
<p>Lorem ipsum dolor...</p>
</div>
</div>
<div class="accordionMenu">
<div class="menuSection" id="promition">
<h2><a href="#promition">promition</a></h2>
<p>Lorem ipsum dolor sit amet...</p>
</div>
</div>
<div class="accordionMenu">
<div class="menuSection" id="event">
<h2><a href="#event">event</a></h2>
<p>Lorem ipsum dolor sit amet...</p>
</div>
</div>
</body>
</html>
