#checkout-button {
    height: 36px;
    background: #259c26;
    color: white;
    padding:6px 12px 6px 12px;
    font-size: 1.2em;
    border: 0;
    font-weight: bold;
    cursor: pointer;
    border-radius: 6px;
    
}

    #checkout-button:hover {
        opacity: 0.8;
    }