html, body, footer {
    display: block;
}

html {
    overflow: hidden;
    background-color: black;
    background-image: url(background.jpg);
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

body {
    height: 100%;
    width: 100%;
}

img {
    border-width: 0;
}

img.download {
    position: fixed;
    top: calc(50% - 50px);
    left: calc(50% - 50px);
}

a {
    color: black;
    text-decoration: none;
    text-shadow: 0px 0px 10px white;
}

footer {
    height: 30px;
    overflow: hidden;
    text-align: center;
    font-size: 0.5em;
    text-shadow: 0px 0px 10px white;
    color: black;
    position: fixed;
    left: 0px;
    bottom: 0px;
    width: 100%;
    padding-top: 10px;
    background-color: transparent;
}