HTML
HTML (HyperText Markup Language) is the most basic building block of the Web. It defines the meaning and structure of web content.

Stop using so many divs! An intro to semantic HTML
One of the primary advancements of HTML5 was introducing a standardized set of semantic elements. The term "semantic" refers to the meaning of a word or a thing, so "semantic elements" are elements designed to mark up the structure of a document in a more meaningful way, a way that makes it clear what they're for, what purpose they serve in the document. And importantly, since they're standardized, these elements define the document in a way that everyone can use and understand, robots included.
Stop using so many divs! An intro to semantic HTML by Ken Bellows
Modern HTML Explained For Dinosaurs
Modern HTML can definitely be frustrating to work with as it continues to change and evolve at a rapid pace. Yet we’re able to do more now than ever before, and we are all essentially at the ground floor of a new industry with the potential to shape it into the platform we want it to become.
Modern HTML Explained For Dinosaurs by Peter Jang
CSS
CSS (Cascading Style Sheets) is a style sheet language used for describing the presentation of a document written in a markup language.

Time-saving CSS techniques to create responsive images
As a web developer, there is a high probability that you have encountered the two enemies of this article: images and deadlines. Sometimes, for some reasons, your images won’t fit the layout and you don’t want to wrap your head around this for hours.
Time-saving CSS techniques to create responsive images by Adrien Zaganelli
Scroll to the future
Most of the web pages do not fit on a single screen, so the ability to scroll information is taken for granted by all users. For front-end developers and UX designers, though, implementing scrolling experiences that work well across browsers, fit nicely into a design, and still perform well, can be a challenge.
Scroll to the future by Anna Selezniova and Andy Barnov
JavaScript
JavaScript is the programming language of HTML and the Web. It programs the behavior of web pages.

Clean up your code by removing ‘if-else’ statements
When we write JS code, we often encounter the situation of complex logic judgment. Generally, you can use if/else or switch to implement multiple conditional judgment, but there will be a problem: With the increase of logic complexity, if/else and switch in the code will become more and more bloated. This article will take you to try to write more elegant judgment logic.
Clean up your code by removing ‘if-else’ statements by bitfish
Intro to Generative Art
Often, generative art draws inspiration from modern art, especially pop art that makes heavy use of orderly geometric patterns. However, it is a very broad and rich category of art created with code with a central characteristic: Generative art is art built with code, but, on top of that, it incorporates a self-governed or autonomous system in some way.
Intro to Generative Art by Ali Spittel