#processing-screen {
    height: 100%;
    width: 100%;
}

#processing-screen-top {
    display: flex;
    height: 90%;
}

#processing-screen-bottom {
    height: 10%;
}

#controls-div {
    width: 60px;
    height: 100%
}

#controls-div img {
    max-width: 42px;
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

#canvas-div {
    width: calc(100% - 60px);
    height: 100%;
    flex-grow: 1;
}

#canvas {
    width: 100%;
    height: 100%;
}