Alternate way to show webpage without opening new one(onepage site)

Any ideas on how can I show information on the same page? For example, I have list of features and the button under each of them such as [More]. Under button click, I want to show that page without opening new page. Below is the list of my thoughts, would be great if you add some items into it;)

• Popup boxes or popup boxes with iframe
• Sliding content(from left or right)
• ...

Thank you!