Colgroups are used to identify column groups. This table has two distinct column groups titled 'Airport Location' and 'Car Rental Information'. The first has a width of 20%; the second has a width of 40% pixels.

Airport Location | Car Rental Information
--- | ---
Country | City | ABC Company | EFG Company | XYZ Company
France | Paris | yes | yes | yes
Germany | Frankfurt | yes | yes | yes
England | London | yes | yes | yes
Netherlands | Amsterdam | yes | yes | yes
USA | New York | yes | yes | yes