They are bigger because there are <p>
elements in the table which contain the text. By default <p>
elements have a margin. You can remove that by adding this to your css:
#AutoNumber9 tbody tr td p {
margin: 0;
padding: 0;
}
This is specific only for the table with the id #AutoNumber9.
If you want to do that for all <p>
elements on the site you can add:
p {
margin: 0;
padding: 0;
}