body {
    margin: 0;
    padding: 0;
}

#canvas {
    border: 1px solid black;
    background-color: #ffffff;
}

.controls {
    margin-top: 20px;
}

/* Sources: */
/* 1. https://stackoverflow.com/questions/72653622/how-vues-event-can-change-const-variable-is-possible */
/* 2. https://github.com/chen-yu-lin/javaScript50 */
/* 3. https://github.com/ktseto/dashboard */