#con{position:relative;height:320px;width:1100px;z-index:2;margin:0 auto;}
#con ul {width:100%;height:100%;position:absolute;top:0;left:0;}
#con ul li {position:absolute;}
#con ul img {position:relative;top:0;left:0;width: 250px;height: 250px;}
/*箭头部分*/
#con span {display:inline-block;width:50px;position:absolute;top:0;z-index:30;cursor:pointer;}
#con span img {width:50px;height:150px;display:block;}
.pic1 {opacity:1;}
.pic2 {opacity:1;}
.pic3 {opacity:1;}
.pic4 {opacity:0;}
.pic5 {opacity:0;}
.pic6 {opacity:0;}
.pic7 {opacity:0;}
.pic8 {opacity:0;}
.pic9 {opacity:0;}
#closeVideo{
    position: absolute;
    top:5px;
    right:5px;
    height:15px;
    line-height: 11px;
    width: 15px;
    background: #fff;
    border-radius: 50%;

}