adding code to create an accordian style faq

I have added the code on three separate occasions to create an accordian style faq but the answer to the question is always visible, I have Java script enabled in Firefox, has anyone any ideas?

Which code did you use?

Also, you can use this plugin to create accordion, easy to install/customize without coding skill, you can create accordion with markdown/index page/portfolio page

Hi, I used code from web sites who claim their code will work, I have tried five different versions and still the answers are visible. I will look at your suggestion thank you.