Hi thank you for your help it is most appreciated.
I have a couple of screenshots, one shows the website accessed on my smartphone - and it seems to work ok.
The second screenshot is viewing exactly the same piece of coding but through the eBay app. This is where the issue seems to lie.
We have checked it on iphone, ipad, tablet, desktop and laptop and it seems to work on all fine except the app where the images and code are left justified (and the text seems very much condensed - i.e. just a couple of words per sentence).
(sorry, both examples on one image as the blog only allows new users to upload one image at a time)