body, html { font-size: 100%; padding: 0; margin: 0;}
ul{list-style:none;}
.slider{width: 100% !important; height:880px; margin:0 auto; overflow: hidden; position:relative; background:#fff}
.slider .slider-main li{ width:100% !important; }
.slider .slider-main li img{width:100% !important;height:880px !important;position: absolute;}

.begin .slider{ height: 600px!important; }
.begin .slider .slider-main li img{width:100% !important;height:600px !important;position: absolute;}<!--0.00011491775512695-->