.noscript, .not_supported {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    line-height: 1.2;
}

.noscript {
    background-color: rgb(245, 241, 241);
    z-index: 9999;
}

.not_supported {
    display: none; /* flex */
    background-color: rgb(255, 192, 192);
    z-index: 9998;
}

.noscript h1, .not_supported h1 {
    font-family: Arial, Helvetica, sans-serif;
    text-transform: uppercase;
}

.not_supported h1 {
    padding: 0 2em;
}