https://medium.com/@bretcameron/so-you-think-you-know-html-7813c03f8ff6

Image Credit: Austin Poon / UnsplashHTML is the first language that many developers learn. While learners of CSS and JavaScript soon encounter tools to augment these languages — such as Sass (for CSS) or Babel (for JavaScript) — the same is rarely true of HTML.

Since many HTML learners are total beginners, introducing new technologies would probably feel like too much too soon. But that means systems used to enhance and improve HTML get left off the curriculum, and many beginner-to-intermediate developers may not realise the options available to them.