Tools: After Effects CC, Illustrator CC
From the book: “A book about code that doesn't read like a 1980s VCR manual... It's not just for programmers, it's written and presented to make it easy for designers, bloggers, content and e-commerce managers, marketers to learn about the code used to write web pages.”Image Sources and HTML & CSS Official Site
Here are my original illustrator files I started with for concepting.
Here are my screenshots of some of the final video animations going through each step until the result.