html, body{overflow:auto;}
.clearfix:after { content: '.'; display: block; height: 0; clear: both; visibility: hidden }
.clearfix { zoom: 1; display: inline-block; _height: 1px }
*html .clearfix { height: 1% }
*+html .clearfix { height: 1% }
.clearfix { display: block }
.pull-right {float: right;}
.pull-left {float: left;}
.hide {display:none;}