This is the first part of the bug. A clarification in the spec states that a grid item spanning multiple tracks, which include a flexible track, should not participate in auto min sizing calculation and should have a width of 0. https://w3c.github.io/csswg-drafts/css-grid-1/#min-size-auto Differential Revision: https://phabricator.services.mozilla.com/D160900
Common testing tools for mozilla codebase projects, test suite definitions for automated test runs, tests that don't fit anywhere else, and other fun stuff