#app {
    float: left;
    width: 30vw;
    height: 40vw;
}

.layer-canvas {
    background-color: transparent;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin:0;
}

.bf-meter-root  {
    position: absolute;
    width: 30vw;
    height: 45vw;
}