/*全屏显示大图*/
.opacityBottom{
    width: 100%;
    height: 100%;
    position: fixed;
    background:rgba(0,0,0,0.8);
    z-index:1000;
    top: 0;
    left: 0
}
.none-scroll{
    overflow: hidden;
    height: 100%;
}
.bigImg {
    width: 25%;
    left: 35%;
    top: 15%;
    position: fixed;
    z-index: 10001;
}