<!DOCTYPE html>
<html>
<head>
<style>
table,th,td
{
border:1px solid black;
}
</style>
</head>
<body>
<table>
<colgroup id="myColgroup" span="2" style="background:red"></colgroup>
<tr>
<th>ISBN</th>
<th>Title</th>
<th>Price</th>
</tr>
<td>3476896</td>
<td>My first HTML</td>
<td>$53</td>