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

body {
    width: 100%;
    height: 100vh;
    background-color: #000000;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    overflow: hidden;
}

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