代码如下
HTML代码：
header Sidebar Main footer
CSS代码：
body {
margin: 10px auto;
font-family: sans-serif;
width: 500px;
}
div {
border-radius: 5px;
box-shadow: 1px 2px 5px rgba(0,0,0,0.3);
border: 1px solid #ccc;
padding: 5px;
}
#sidebarWrap {
height: 400px;
width: 210px;
float: right;
position: relative;
box-shadow: none;
border: none;
margin: 0;
padding: 0;
}
#main {
width: 270px;
height: 4000px;
}
#footer {
clear: both;
margin: 10px 0;
}
#sidebar {
width: 200px;
height: 300px;
position: absolute;
}
#header {
height: 200px;
margin-bottom: 10px;
}
#sidebar.fixed {
position: fixed;
top: 0;
}
#footer { height: 600px; }
#footer { height: 600px; }
JavaScript代码：
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