.show-img{position:relative;width:76%;float:left;}
.show-img img{width:100%;height:400px;}
.show-black{position:absolute;top:0;left:0;height:400px;background:rgba(0,0,0,.4);display:none;width:100%;text-align:center;line-height:400px;font-size:26px;color:white;}
.show-black:hover{color:white;}
.show-content{width:20%;line-height:45px;font-size:20px;float:right;}
.show-button{display:block;font-size: 20px;margin-top: 20px;background: #00A1E2;width: 70%;text-align: center;color: white;height: 45px;line-height: 45px;margin-left: 15%;}
.show-button:hover{color:#000;}