body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

h1 {
    text-align: center;
}

.content {
    width: 90%;
    margin: 0 auto;
}

#construction-site {
    display: block;
    margin: 1em auto;
    max-width: 20%;
    border: 1px solid #eee;
}