Discussion on: 15 CSS3 Best practices of for beginners to pro.

A best practice is a technique or methodology that, through experience and research, has proven to reliably lead to a desired result. In software development we use best practices as well-defined methods that contributes to a successful steps in product/project development. Thus are general statements that -desirably- are followed by each individual to achieve a solid homogeneous joint result for a given tech stack.

Reducing your functions to a single responsibility is a good practice that exerts from the clean code group. Using a given language predefined method or function cannot be a good practice because you simply will use it when needed, so if you state that using CSS min, max and clamp are good practices, you'll need -scientifically- to state all language reference as good practices and even that, they are conditioned to a conditional context.

If you need something to be 100% it's parent width, is it a good practice to use min, max or clamp to achieve this? of course not. You simply do width: 100%.

The same way you will not find statements like "in JS a good practice is to use split method" because it's only good whenever is needed and not "always" or "in any case", instead we say "Don't Repeat Yourself" or DRY principle, which enforces you to use existing code methods or functions instead re-coding them, which can be applied to any case, thus if split method exists you'll use it instead coding a custom split -as long as it fits-.

There's something I need to remember many times in this platform but again here it is: IT is a science, thus there are methodologies, patterns, best practices, tests... you can try different approaches and apply synthetic tests as benchmarks to analyse which one works better or even do A-B tests to see how user interacts with different UI versions of your software.

In conclusion if you say something is good or that is better but you can't tell why using reliable source or public benchs/tests, you are doing what is called opinionated or anti-scientific pattern.