#camera {
    position: relative;
}

#camera > canvas, #camera > video {
    max-width: 100%;
    width: 100%;
}

#camera > canvas {
    position: absolute;
    top:0;
    left: 0;
    border: 1px solid red;
}

#camera {
    text-align:center;
    max-height: 450px;
    max-width: 380px;
    overflow: hidden;
}