.clearfix:after {content: "."; display: block; height: 0; clear: both; visibility: hidden;}
.clearfix {zoom:1;}

.wrapper_slider {width:875px;}
/* tmall focus */
#focus_slider {width:875px; height:236px; overflow:hidden; position:relative;margin:0; padding:0;}
#focus_slider ul {height:236px; position:absolute;margin:0; padding:0;}
#focus_slider ul li {float:left; width:875px; height:236px; overflow:hidden; position:relative; background:#000;list-style:none;}
#focus_slider ul li div {position:absolute; overflow:hidden;}
#focus_slider .btnBg {position:absolute; width:393px; height:40px; left:0; bottom:0; }
#focus_slider .btn {position:absolute; width:393px; height:24px; left:0; bottom:8px; padding-left:10px;}
#focus_slider .btn span {display:inline-block; _display:inline; _zoom:1; width:24px; height:24px; line-height:24px; text-align:center; font-size:12px; font-family:Arial; margin-right:10px; cursor:pointer; color:#333;font-weight: bold;background:#d7dee8;}
#focus_slider .btn span.on {background:#2f76bb; color:#fcc;}