Hi Nick, you found me!

Click here for the HTML, CSS and Javascript that I'm using

This is the result that I get ...

This is the main text area, colours are fine up here ...

Question

What's the meaning of life?

This is regular text.  Not sure, but it seems to have reverted to the standard colours before customisation.
But I can change them easily enough.

Answer

The answer is 42

This is where the answer will go.  I don't want it to be displayed straight away.

This is main wrap 2 - Hmm, something strange I think

I had to make some changes to the CSS, because the youtube video example was a little out of date, and the elements here were not respecting the right and left margins.  However that much seems to have been successful.