n: absolute;
        top: 50%;
        left: 50%;
        -ms-transform: translate(-50%, -50%);
        transform: translate(-50%, -50%);
      }

      .contain {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: contain;
      }

      .stretch {
        display: block;
        width: 100%;
        height: 100%;
      }

      .cover {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
      }

      .bottom {
        position