I have set up a website for a client that wishes to update the html themselves to add new products regularly. I thought the easiest way to do this would be to set tables for them to enter their own text/photos which they can copy and paste. Originally these tables were underneath each other but now I am trying to have the tables side by side and set them so they remain the same height despite the size of the photo/text put inside them but this happens

http://www.theoldstuff.co.uk/test.html

any advice on how I can set this in the css please?