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