Newbie help

Hi Everyone
Pretty new to all this. I’m basically having a problem with how something is being displayed.

This is the page:
https://catest.co.uk/the-team/

When you click on a name say “Peter Burnett” I’ve set it so a light box appears and displays an external page. For peter it is https://catest.co.uk/team/peter.html I’ve used tables on this page. The page on its own diplays perfectly side by side but in the light box the image sits above the text.

Is it something to do with putting it in tables or is it something to do with the stylesheet that it seems to be lifting from the main site?

Any help would be hugely appreciated! I’ve been stuck on this for days.

Thanks in advance
James