<div id="wrap"> <div id="main" class="clearfix"> <div id="content"> </div> <div id="side"> </div> </div></div><div id="footer"></div>
html, body, #wrap {height: 100%;}body > #wrap {height: auto; min-height: 100%;}#main {padding-bottom: 150px;} /* 必须使用和footer相同的高度 */#footer {position: relative; margin-top: -150px; /* footer高度的负值 */ height: 150px; clear:both;}
.clearfix:after {content: "."; display: block; height: 0; clear: both; visibility: hidden;}.clearfix {display: inline-block;}/* Hides from IE-mac /*/* html .clearfix { height: 1%;}.clearfix {display: block;}/* End hide from IE-mac */
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