body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
}

a, a:visited {
    clear: both;
    padding-top: 30px;
    color: #666;
    text-decoration: none;
}
a:hover {
    color: #333;
}

.center {
    text-align: center;
}