This site promises “everything you need to learn CSS Grid Layout” and it delivers, with examples of specific properties, higher-level samples of common design patterns, and even video tutorials.

You can style them with CSS to improve the default appearance. However, make sure you don’t get carried away and use tables for layout—for accessibility reasons, keep them strictly for data.

Google's John Mueller and Martin Splitt spoke for just under 40 minutes on the topic of CSS and SEO. They covered why CSS files matter for SEO, how modern CSS frameworks impact pages, and the SEO ...