Currently I am doing it by HTML and want to do same by CSS. I have tried myself but it not working. My working HTML is below.

```
<table class="product_tabel" cellspacing="2" cellpadding="3">

```

But I am want to use it by CSS class `product_tabel` so how can I do this? 

```
 .product_tabel
    {
    cellspacing :2;
    cellpadding:3;
    }

```