article.promo {
    background-image: url("../img/background-metro.png");
}

section.appstores footer input[type="submit"] {
    background-color: #17C5EE;
}

article.description {
    background-color: #FFFFFF;
    color: #747C84;
}

article.description h1,
article.description h2,
article.description h3 {
    color: #1FB0DB;
}