I purchased the license for Mathematica 11 and got it installed this week, So far I'm having a great learning experience with it. One of the most highlights of purchasing Mathematica was CDF documentation . I would like to create notes on textbooks by using the exact same feature as shown on this website: Link.
Is this a template created by Mathematica, how do I go about creating a CDF such as this for a textbook I am learning.