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

body {
    display: flex;
    flex-direction: column;
    justify-content: center; /*REQUIRES TO CALCULA CANVAS POSITION TO DETECT CLICK*/
    align-items: center;
    background-color: gray;
}

h1 {
    text-align: center;
    font-family: 'Roboto', sans-serif;
    font-size: 3em;
    color: white;
}

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