.woocommerce-product-messages .product-message {
    margin-bottom: 12px;
    padding: 10px 14px;
    background-color: #f1f1f1;
    border-left: 4px solid #b2823b;
    font-size: 14px;
  }
  
  .woocommerce-product-messages .product-message:last-child {
    margin-bottom: 0;
  }