body {
    font-family: "Helvetica Neue", Helvetica, sans-serif;
    background-image: url("/assets/images/background.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.wrapper {
    margin: 1em;
    padding: 1em;
    max-width: 40em;
    background-color: rgba(255, 255, 255, 0.85);
}