Each table cell is identified with a letter and all dimensions are in pixels. The letters and dimensions shown in the table must NOT appear on your final web page. The external table border must have a width of 4 pixels and all internal grid lines on the table must have a width of 2 pixels. Table borders and grid lines must be visible.
<!DOCTYPE html>
<html>
<head>
<title> Nested Table </title>
</head>
<body>
<table border="4px" align="center" width=100%>
<tr>
<td height="300px" width="400px"> A 400 X 300 </td>
<td height="300px" width="400px"> B 400 X 300 </td>
<td height="300px" width="400px"> C 400 X 300 </td>
</tr>
<tr>
<td colspan=3 height="250px" width="1200px"> D 1200 X 250 </td>
</tr>
<tr>
<td colspan=3 height="150px" width="1200px"> E 1200 X 150 </td>
</tr>
<tr>
<table border="4" align="center">
<tr>
<td height="300px" width="50%"> F 600 X 300 </td>
<td height="300px" width="600px"> G 600 X 300 </td>
</tr>
</tr>
</table>
</html>