Rachel Andrew explains a little bit about what happens at the CSS Working Group meeting at W3C TPAC, and shows some examples and demos of the things they discussed for CSS in particular.
Harry Roberts introduces three types of testing, how and when they should be carried out, and what their aims and outcomes should be.
Paul Miller explains that in Safari 12.1, you’ll be able to set colors based on the color scheme in the OS, with a new prefers-color-scheme property.
A quite interesting and amusing list of CSS inconstancies.
Tiago Romero Garcia gives a refresher on web accessibility (ADA, WCAG, WAI-ARIA, impairment types, and exclusions) and shares practical rules that will help you develop with accessibility in mind.