Hi,
4. Use below code
.woocommerce-message, .woocommerce-error, .woocommerce-info, .dokan-info, .dokan-error, .dokan-alert, .dokan-alert-success, .mc4wp-alert, .woocommerce-order-overview-wrapper ~ p {
background: #dc2935;
}
Regards,
Hung PD