OLD DOGS, NEW CSS TRICKS

Summary from the TLDR newsletter

While a lot of new CSS features have shipped in the last few years, actual usage is still low. When learning new things, it's important not to get overwhelmed. Don't try to refactor an entire codebase all at once - pick achievable goals. While you don't have to use the latest and greatest new CSS features, it's worth knowing which specific problems these new techniques can solve so you can decide whether they're a good fit for your project.