By any measure, CSS has gotten a lot better in recent years. It’s gotten more useful features, better interoperability between browsers, and become easier to learn thanks to a concerted push toward making CSS a cohesive system free of quirks and hacks.
Source: Modern CSS in Real Life, an article by Chris Coyier.
In this post, I go over what monad transformers are and how to use them. I go into the internals of some common transformers, and we see how monad transformers are essentially functions that take in a monad and return an "augmented" monad with extra capabilities. We finish with a discussion of two different ways of using monad transformers, mtl-style and transformers-style.
Source: Monad Transformers 101, an article by William Yao.
Perl actually has two encodings that get the letters u, t, f, and 8. One will happily let you do bad things, and the other will let you do bad things but with a warning that you can make fatal.
Source: Know the difference between utf8 and UTF-8, an article by brian d foy.