<style>
      .btn {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 3;
        display: flex;
      }
    </style><div class="btn"><img
          src="{{item.btnImg}}"
          width="100%"
          height="100%"
      /></div>