html,
body {
    height: 100%;
}

body,
canvas {
    padding: 0;
    margin: 0;
}

body {
    background-color: #c0c0c0;
}

#container {
    --scale-factor: 1;

    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
}

#container canvas,
#container .textLayer {
    /* overlay child elements on top of each other */
    grid-row-start: 1;
    grid-column-start: 1;
}

canvas {
    display: inline-block;
    position: relative;
}

[data-main-rotation="90"] {
    transform: rotate(90deg);
}

[data-main-rotation="180"] {
    transform: rotate(180deg);
}

[data-main-rotation="270"] {
    transform: rotate(270deg);
}