Dear Joffm,

Thank you for the guidance and the code: this has sorted my survey - and it looks great!

Much obliged.
Regards.
Alex
PS: Will definitely learn the basics about CSS and JS.

Thank you, dear Tony. What should I put instead?

What should I put instead?

Nothing, remove it.
As Tony, it is not necessary.

I did not mention it, because there was no harm.
... and I mostly overlooked it.
 

Many thanks both!!!