.dce-container-bgcanvas{
    position: relative;
    height: 500px;
}
.dce-container-bgcanvas .scene {
    position: relative;
    width: 100%;
    height: 100%;
}
.dce-container-bgcanvas .scene canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}