We’re all much better at managing specificity nowadays. It’s a widely accepted best practice to keep specificity low and flat—to shun ID selectors, to make liberal use of classes, and to avoid unnecessary nesting. But there are still plenty of situations where a more specific selector will be useful. With the introduction of a newly proposed pseudo-class, more support of the shadow DOM, and the use of the all property, we will soon be able to handle inheritance and specificity in new and exciting ways.

Let’s make 2018... fast! A front-end performance checklist (PDF/Apple Pages), with everything you need to know to create fast experiences today.

One of the things I’ve tried to do in creating this material is to bring Flexbox into place as one part of an overall layout system. Prior to Grid shipping, Flexbox was seen as the spec to solve all of our layout problems, yet a lot of the difficulty in using Flexbox is when we try to use it to create the kind of two-dimensional layouts that Grid is designed for. Once again, we find ourselves fighting to persuade a layout method to do things it wasn’t designed to do.

When people think of CSS Grid they normally envision image grid layouts and full web pages. However, CSS Grid is actually a superb technology for laying out articles as well, as it allows you to do things which previously was tricky to achieve.

Marcy Sutton explains how automated tests for accessibility can help free up your team of some manual testing while preventing regressions into production.