Create Table, and put the border

Hie, I am working in the template, but I need add a table with border.
This is my example (I put this code inside a text block), but is without the border. Thank you!
<table>
<tr>
<th scope=”col”>Nombre producto</th>
<th scope=”col”>Precio unitario</th>
<th scope=”col”>Unidades</th>
<th scope=”col”>Subtotal</th>
</tr>

<tr>
<td>Reproductor MP3 (80 GB)</td>
<td>192.02</td>
<td>1</td>
<td>192.02</td>
</tr>

<tr>
<td>Fundas de colores</td>
<td>2.50</td>
<td>5</td>
<td>12.50</td>
</tr>

<tr>
<td>Reproductor de radio & control remoto</td>
<td>12.99</td>
<td>1</td>
<td>12.99</td>
</tr>

<tr>
<th scope=”row”>TOTAL</th>
<td>-</td>
<td>7</td>
<td>207.51</td>
</tr>
</table>