body {
    background-color: #222;
    margin: 0;
}

#drawing_canvas {
    background-color: #aaa;
    position: absolute;
    margin: auto;
    width: 1024px;
    height: 512px;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}

#text-measure {
    font-family: 'Arial', cursive;
    font-size: 120px;
    font-weight: bolder;
    color: #fff;
    margin: 0;
    padding: 0;
}

.hidden {
    position: absolute;
    visibility: hidden;
}