form {
    color: #FFF;
    padding-left: 20%;
    margin-top: 20px;
}

.row {
    width: 100%;
    display: flex;
}

#canvas {
    background-color: #222;
    width: calc(100% - 200px);
    height: 100vh;
    float: left;
}

#sidebar {
    background-color: #333;
    float:left;
    width: 200px;
}

input[type="number"] {
    max-width: 40px;
}