We began work on a developer tool to help with understanding and using CSS Grid over a year ago. In March, we shipped the first version of a Grid Inspector in the Firefox DevTools along with CSS Grid. Now significant new features are landing in Firefox Nightly. Here’s a tour of what’s arrived in July 2017.
Download Firefox Nightly (if you don’t have it already) to get access to the latest and greatest, and to keep up with the continuing improvements.
About Jen Simmons
Jen Simmons is a Designer and Developer Advocate at Mozilla, specializing in CSS and layout design on the web. She is a member of the CSS Working Group, and speaks at many conferences including An Event Apart, SXSW, Fluent, Smashing Conf and more.