.da-thumbs{position:relative;margin:20px auto;padding:0}
.da-thumbs>div{float:left;position:relative}
.da-thumbs>div a,.da-thumbs>div a img{display:block;position:relative}
.da-thumbs>div a{overflow:hidden}
.da-thumbs>div a div{position:absolute;width:100%;height:100%;background:rgba(60,60,60,.7);color:#fff;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-webkit-justify-content:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center}