My clever friend amended it an everything was lavely dahlink. Until the Nostalgia post and it has reverted.
My clever 'lady what knows' suggests I am using a dirty word processor and it is that that has screwed things up. Yes - I use Google docs; good save cycles as I work and it is not taking up room on my machine.
So - just for old times sake, this is written in Blogger. Using the 'compose' page.
See if it goes back to the wide open space of a wide Blogger.