Hi @jack1972,
I am not sure how much control you have over the HTML layout of your product pages, but typically the image, product content, and product tabs are all in the same container. On your site, the image is in a separate container from the product content and product tabs. This is forcing all of the tab content into the same space as the product content (which is being forced right – purposefully – by the image). Do you have any idea if this is something you can control? Is it possible to either remove the tab content from the product content container (so all three are in separate containers), or add the image to the product and tab content container (so all three are in one container).
To be honest, I am not sure how to solve this purely with CSS but I am trying.
Kevin.