.rafa-amazon-button {
    display: block !important;
    background-color: #FF0000;
    color: #fff !important;
    text-transform: uppercase;
    padding: 15px;
    width: 100%;
    min-height: 50px;
    text-align: center;
    text-decoration: none;
    font-size: 1.5em;
    font-weight: 700;
    box-sizing: border-box;
    margin: 0 auto 30px auto;
}
.rafa-amazon-button {
    transition: background-color 0.3s ease;
}
.rafa-amazon-button:hover {
    background-color: #cc0000 !important;
}