html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: sans-serif;
    background-color: #1a1a1a;
    overscroll-behavior: none;
}

body {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: stretch;
}