body{margin: 0px;}

input,button,ul,ol{margin: 0px;padding: 0px;}
ul,ol,li{list-style: none;}
.clearfix{*zoom: 0;}

.banner_main{width: 100%;overflow: hidden;position: relative;z-index: 1;}

.banner li{width: 100%;position: absolute;z-index: 1;overflow: hidden;}
.banner li img{width:1440px;height: 400px;display: block;position: relative;left:0%;margin-left:0px;top: 0;}
.banner li a{width: 100%;display: block;}