body {
    margin: 0;
    overflow: hidden;
}
canvas {
    display: block;
}
#info {
    position: absolute;
    top: 10px;
    width: 100%;
    text-align: center;
    z-index: 100;
    display:block;
}
button {
    margin: 0 5px;
}

#video-container {
    position: absolute;
    bottom: 10px;
    left: 10px;
    width: 200px;
    height: 150px;
    border: 2px solid #fff;
    z-index: 100;
}

#webcam {
    width: 100%;
    height: 100%;
}

#hand-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}