The animations are nice but the explanations are lacking. Seems like this wouldn't be incredibly helpful for a beginner.

Responsive vs Adaptive web design It might seem the same but it isn't. Both approaches complement each other, so there is no right or wrong way to do it. Let the content decide.

I don't think the animation alone is enough to explain, especially if the user doesn't/can't see the image (for any number of reasons).

That said, I'd love the opportunity to copy edit this article and/or assist with adding explanations.