html,
body {
    margin: 0;
    height: 100%;
}
#myCanvas {
    width: 100%;
    height: 100%;
    display: block;
}
h1 {
    position: absolute;
    color: white;
    font-family: "Poppins", sans-serif;
    left: 50%;
    /* transform: translatey(50%); */
    transform: translate(-50%, 50%);
}