body {
    margin:0;
    padding:0;
}

a {
    color:darkblue;
    text-decoration:none;
}

a:hover {
    background:#def;
}

a.button {
    background:darkblue;
    padding:10px 20px;
    border-radius:3px;
    color:#fff;
}

a.button:hover {
    background:blue;
}

.h30 {
    height:30px;
    margin-bottom:10px;
    display:block;
}