html,
body {
    height: 100%;
    padding: 0;
    margin: 0;
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
    border: none;
}

#progress {
    position: absolute;
    left: 0;
    top: 0;
}

#viewer-container {
    flex: 6;
    width: 100%;
    overflow: hidden;
}

.flex-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

#blue {
    background: blue;
    width: 100%;
    flex: 0;
}