.clear{clear:both;}
.videobg{width:100%;padding-top:50px;background-color:#535353;}
.video-main{width:1100px;margin:0 auto;}
.video-banner{width:825px;float:left;margin-bottom:20px;}
#video-first{width:825px;background-color:#000;}
.sanjiao {width:0;height:0;border-top:30px solid transparent;border-left:50px solid white;border-bottom:0px solid transparent;position:absolute;top:100px;right:0px;}
.video-banner-right{width:430px;;float:right;}
.video-banner-right p{color:#fff;font-size:14px;line-height:26px;margin-bottom:8px;}
.videolist h3,.videolist h4{color:#fff;}