Read more hover over symbol

[ton]

Hello,
I would like to have a symbol (like + or something) where you hover over and then if you click on it more text shows up. Is that possible in any way or plug in?
Thank you so much!
All the best

[mariusjopen]

Dear @ton
have a look here:
http://laythemeforum.com/search?term=accordeon&in=titlesposts&matchWords=all&sortBy=relevance&sortDirection=desc&showAs=posts

Hope that brings you in a right direction.

Best!

Marius