So I thought to myself s'morning "Why do these webpages have summat describing the width of the photo, surely it just works whatever size of photo is used?" so I did a few pages without ".jpg width=80%" they looked fine on my PC. Until I looked at them on my phone or tablet, it was trying to show the photo realsize, so it would show a corner of the photo instead of the whole pic
So I have added width=80% to those pages, it looks proper again