body {
    font-family: Arial, Helvetica, sans-serif;
    background: #fcfaf9;
  }
  
  .grid {
    position: relative;
  }
  
  .item {
    display: block;
    position: absolute;
    height: 200px;
    width: 200px;
    line-height: 200px;
    margin: 5px;
    text-align: center;
    z-index: 1;
    background: #000;
    color: #fff;
  }
  
  .item.muuri-item-dragging {
    z-index: 3;
  }
  
  .item.muuri-item-releasing {
    z-index: 2;
  }
  
  .item.muuri-item-hidden {
    z-index: 0;
  }
  
  .item-content {
    position: relative;
    width: 100%;
    height: 100%;
    color: #fff;
    background: #59687d;
    font-size: 40px;
    text-align: center;
  }
  
  .item.muuri-item-dragging .item-content {
    background: #8993a2;
  }
  
  .item.muuri-item-releasing .item-content {
    background: #152c43;
  }