I would like to arrange some the content of some long pages so that you have:
Heading 1 - click to create a "drop down" of previously hidden content within this section then click again to re-hide the content
Heading 2 - click to create a "drop down" of previously hidden content within this section then click again to re-hide the content
etc
This would make it easier for users to see and understand the structure of a long page and also easier for them to navigate through long pages.
Would this have any negative SEO implications as much of my content would be hidden from users initially? That is, would Google discount this content in its algorithms or otherwise penalise me?

