100 30% width

100 100 100 100 100 100 50% width

100 no width given 30% width
500 colspan=3

foo no width given 30% width
200 spans col 1-2last cell
first cell 300 spans col 2-3

fooooo oooooo oooooo oooooo oooooo bar

This is colspan=2

 Blah Blah Blah Blah Blah Blah Blah Blah Blah

This is colspan=3 blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah



no colspan declared

 Blah Blah Blah Blah Blah Blah

This is colspan=2 blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah