a[href*="api.whatsapp.com"] {
    display: table !important;
    margin: 25px auto !important;
    padding: 13px 32px !important;
    background: #b40000 !important;
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 6px !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    line-height: 1.5 !important;
    text-align: center !important;
}

a[href*="api.whatsapp.com"]:hover {
    background: #8f0000 !important;
    color: #ffffff !important;
}