Get all the buttons to line up

Hi Ben,

I’ve attempted to do this, and having some success.
The only problem I have though is that the buttons are covering some of the content above them.
Any thoughts?
See example here:

http://irwinhunter.com.au/
(a row of two columns and a row of three columns both examples)

TIA, Dave

ps, I have made a ‘sort of’ solution by adding a no-breaking space inside a paragraph on the longest column (in each example) so the button is pushed down.