If we have any bright code jockeys in the Org, I could use a spot of help. Attempting to create a collapsing field for a small business website, something like this:

Code:
Button

Content content content content

Where clicking the button shows the content, and clicking it again hides the content. You would think this would be easy. You would think this could be accomplished without resorting to Javascript.

Anyway, having copied and tweaked several code samples, all of which proved unsatisfactory, I'm curious if any Org code-monkeys have a simple, non-Javascript method for creating collapsing fields. Code samples appreciated.