Years have passed since the definition of Turing Completeness, and nowadays all programming languages are meant to be Turing complete (whatever that means in terms of practical consequences).
Do you know that CSS is a Turing complete language? Check the implementation of rule 101, it’s awesome!

CSS is often seen with scorn by so-called “real programmers”, that stuff that is used to make red borders and drop-shadows, not the real things, such as algorithms.

Follow this fantastic, entertaining presentation from Lara Schenk and start seeing CSS with different eyes.