#photo-area input {
    position: absolute;
    border: none;
    font-size: large;
    font-weight: bold;
    background-color: rgba(255,255,255,0.6);
    color: blue;
}

#photo-area.viewport {
    width: 100%;
    height: auto;
}

    #photo-area.viewport canvas, video {
        width: 100%;
        height: auto;
    }

        #photo-area.viewport canvas.drawingBuffer, video.drawingBuffer {
            margin-left: -100%;
        }