body {
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    max-width: 500px;
    position: relative;
    margin: 0 auto;

    h1 {
        font-weight: lighter;
        margin-bottom: 0;
    }

    h3 {
        margin-top: 0;
        font-weight: lighter;
    }

    input {
        margin: 5px;
    }

    footer {
        position: fixed;
        width: 220px;
        left: calc(50% - 110px);
        bottom: 10px;
        a {
            color: black;
        }
    }
}