sticky footer:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
<title> sticky footer</title>
<style type="text/css" rel="stylesheet">
*{
padding:0;
margin:0;
}
html,body{
height:100%;
}
.wrap{
min-height:100%;
}
.main{
padding:15px 15px 70px 15px;
}
.footer{
margin:-70px;
height:70px;
background:grey;
text-align:center;
line-height:70px;
}
</style>
</head>
<body>
<div class="wrap">
<div class="main">
我是主体内容
</div>
</div>
<div class="footer">
我是footer
</div>
</body>
</html>
清除浮动
.clearfix{
display:inline-block
}
.clearfix:after{
display:block
content:"."
height:0
line-heihgt:0
clear:both
visibility:hidden
}