Hi again Per,
Well, supper's over now, and I've had time to have a brief look through what you did. I would like to pretend that I was going to do something like that!

In truth, what I'd read led me to be thinking along those lines, though I don't think I was going to do as many breakpoints. After reading what people (especially you) had said I did start off thinking in terms of only three.
I have to say that I'm pleased that my fundamental understanding of dividing between content (HTML) and form (CSS) was such that so little actually needed doing. Admittedly this was an extremely simple page, but as I said earlier, it must make sense to start simple. In any case, while most of the web site will do fine for the moment (it's for a B&B now) it makes sense to allow possible Gite customers to see the room occupancy for 2015 well in advance so they can book if they want to.
I've learnt three things in increasing order of importance.
1. That my coding is less bad than I thought it was.
2. That applying simple breakpoints isn't too hard
3. That you are all a really helpful load of people.
Lastly. I was very interested to see what Eric wrote to Steve about display:none. I'd been cogitating about how to speed up loading on devices with smaller bandwidths. However, what I'm not to sure at understanding is what kind of "sound design practices with keeping file sizes as small as possible" can be done. Let's face it, a page full of information for a desktop that is being loaded into a smart phone will still have the same amount of information. However I suspect I'm doing my usual thing of wandering WAY off topic. Sorry to the OP.
In passing >Per. Throughout the 20 odd years my (half french) wife & I lived in the UK, we travelled to France at every opportunity. When the chance came to move here we had already fallen in love with the Correze, and for us it was the best place in the world to come to. So thanks for your understanding of our motives. Actually, I never intended to get involved in writing websites. (Famous last words. Eh?)
All the Best
Ian