span {
    background-color: lightgrey;
    width: 100px;
    height: 100px;
 }

 img {
    pointer-events: none;
    user-select: none;
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 0;
 }

 button {
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 0;
 }

 div {
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 0;
 }