.ibanner {margin: 0px auto;position: relative;height: 400px;}
.banner {width: 1000px;margin: auto;}
#foucsBox { margin: 0 auto; padding: 0; width: 1920px; height: 400px;zoom: 1; position: relative; }
#foucsBox .imgCon { width: 1920px; height: 400px; margin: 0; padding: 0; position: relative; list-style: none; overflow:hidden;}
#foucsBox .imgCon li { float: left; width: 1920px; height: 400px; }

#foucsBox .foucs { left: 470.5px; height: 22px; position: absolute; bottom: 3px; text-align: center; z-index: 3; }
#foucsBox .foucs span { display: inline-block; width: 17px; height: 17px; margin: 0 5px; line-height: 0; font-size: 0;  background:url(../images/ban_coin.png) -23px 2px no-repeat; cursor: pointer; overflow: hidden; }
#foucsBox .foucs span.f { background:url(../images/ban_coin.png) 0px 0px no-repeat ; }