.showpic-index{position:relative}.showpic-index-cover{display:none;background:rgba(0,0,0,.4);position:absolute;top:0}.showpic-index:hover .showpic-index-cover{display:block}.showpic-index-vw{background:rgba(0,0,0,.4);width:100vw;height:100vh;position:fixed;top:0;left:0;z-index:999}.showpic-index-vw-close{position:fixed;top:10px;right:10px;z-index:999}