Hey Stef thankyou I put the code you sent into Customize/Additional CSS and now I can change the font size of the caption. Great!
Any idea why the font size on ‘Edit Post’ would look different to my ‘Preview Post’? It’s making it hard to balance the general text font size with the caption font size when I have to switch back and forward all the time to check the changes I make look like I want them to.
The Edit view shows the caption in a tiny font and the general text in 22, but the Preview shows the caption size at what I assume is the 20px that I set it at (just as a test) in the CSS code and the general text appears smaller than the 22 as shown in the edit view.
Any thoughts very gratefully received!