html {
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    background-color: lavender;
}

#banner {
    width: 50%;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

header{
    text-align: center;
}

footer {
    text-align: center;
}

nav {
    text-align: center;
}

dt {
    text-decoration: underline;
}

dd {
    padding-bottom: 10px;
}