@media only screen and (max-width: 600px) {
    #layout {
        position: fixed;
        width: 100%;
    }

    h1 {
        margin: 0.33em;
    }

    .tiled-image {
        transform: scale(0.5);
        transform-origin: 0 0;
        margin: 0 auto;
        width: 256px;
    }

    .row-image {
        height: 256px;
    }

    .ad-leaderboard
    {
        width: 320px;
        height: 50px;
        margin: 0 auto;
        margin-bottom: 0.33em;
    }

    .base-timer {
        width: 75px;
        height: 75px;
    }

    .base-timer__label {
        width: 75px;
        height: 75px;
        font-size: 20px;
    }
}