.cvs_thumbnail{position:absolute;z-index:200;top:50px;right:50px;display:block;width:160px;height:160px;padding:30px 0;text-align:center;
    /* border:1px solid #777; */
    /* overflow:hidden; */
    -moz-user-select: none; /*火狐*/
    -webkit-user-select: none; /*webkit浏览器*/
    -ms-user-select: none; /*IE10*/
    -khtml-user-select: none; /*早期浏览器*/
    user-select: none;
    -webkit-transform:translateZ(0);
    -moz-transform:translateZ(0);
    -ms-transform:translateZ(0);
    transform:translateZ(0);
}
.cvs_thumbnail .huidi{position:absolute;top:0;width:100%;height:100%;left:0;background-color:rgba(0,0,0,0.65);}
.cvs_thumbnail .shang{position:absolute;top:0;left:0;width:100%;height:30px;background-color:#000;top:-30px;}
.cvs_thumbnail .xia{position:absolute;bottom:-30px;left:0;width:100%;height:30px;background-color:#000;z-index:99 }
.cvs_thumbnail .previewbox{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;}
.cvs_thumbnail .previewbox img{width:auto;height:100%;display: block;}
.cvs_thumbnail .previewbox .brightbox{position:absolute;top:0;width:100%;height:100%;cursor:pointer;border:1px solid #fff;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;}
.cvs_thumbnail .previewbox .dimbox{position:absolute;background-color:rgba(0,0,0,0.5);width:100%;height:100%;}
.cvs_thumbnail .btn{position:absolute;display:block;width:28px;height:32px;cursor:pointer;font-size:18px;color: white;bottom:-25px !important;z-index: 99;text-align: center;}
.cvs_thumbnail .btn.closeButton{top:1px;right:5px;font-size:14px;top:-30px;}
.cvs_thumbnail .btn.smallButton{bottom:5px;left:-1px;}
.cvs_thumbnail .btn.bigButton{right:5px;bottom:5px;}
.cvs_thumbnail .btn.scalebrightbox{bottom:-29px !important;left:30px;width:14px;border-radius:50px; }