html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    overscroll-behavior: none;
    background-color: white;
}

body {
    font-size: 24pt;
}

#game-canvas {
    width: 100%;
    height: 100%;
}

#play-menu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateY(-50%) translateX(-50%);
    padding: 20px 30px;
    background-color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid #777;
    border-radius: 20px;
    text-align: center;
}

#play-button {
    margin-top: 1em;
}