body {
    font-family: sans-serif;
}

.button-frame {
    text-align: center;
}

.button-frame a {
    display: inline-block;
    padding: 8px 24px;
    text-decoration: none;
    color: white !important;
    background-color: red;
    border: solid 1px darkred;
    border-radius: 4px;
}

.button-frame a:hover {
    background-color: #FFAAAA;
}