One of the best gift I have ever had on my birthday. This is really nice when you get a gift from your mentee, the gift explaining the topic on which you mentored on.
Explaining the box model (the most important topics on HTML, CSS) just by wrapping the gift in different layers.
Thank you so much @kml_1326. Here chocolate box is the real content. The immediate yellow box before the chocolate box contains the padding area and the border. The blue box represents the margin outside border. The big yellow box is the bigger area in which the box is placed.