.filter a{
    padding: 10px 15px;
    display:inline-block;
    color:#003;
    background:#eee;
    text-decoration:none;
    transition:all 0.2s;
    border-radius:9px
  }
  .filter a:hover,  .filter a.active{
    background:#e92028;
    color: white;
  }
  .filter{
    padding:30px 10px;
    text-align:center
  }
  .sets a img{
    width:100%;
    height: 100%;
    float:left;
    padding: 10px;
    /* height: 100%; */
    object-fit: cover;
    position: absolute;
  }
  .sets a{
    width:33.33%;
    transition:all 0.2s;
    display:block;
    float:left;
    opacity:1;
    height: 0;
    padding-bottom: 23%;
    position: relative;
  }
  
  .sets .hide, .sets .pophide{
    width:0%;
    opacity:0;
    transition:all 0.1s;
  }