html {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 8vh;
    text-align: center;
    color: #FFF;
    background: #1A1A1A url(/background.jpg) no-repeat center center fixed;
    background-size: cover;
}

a {
    color: #FFF;
    display: block;
    width: 100%;
    height: 100%;
}