Appendix 2: The Unholy Trinities of HTML

Section 1: Unholy Trinity of Syntax

For every well-behaved web page, there exist three essential elements: HTML, CSS, and JavaScript.

Without these three, your site is as useful as a chocolate teapot.

Section 2: Trinities of Tragedy

However, beware of the Unholy Trinities of HTML:

Section 3: The Unholy Trinity of HTML

And then, of course, there's the Holy Trinity of HTML: HTML, CSS, and JavaScript.

May their union be forever fruitful and their divorce be forever avoided.