* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: black;
    font-family: sans-serif;
}

#webgl {
    display: block;
    width: 100%;
    height: 100%;
}