Problem: When flexbox items are given a min-width that is larger than its flex-basis, they don't stack when they don't fit horizontally. It doesn't seem to matter whether flex-flow is set to any combination of row and wrap (row, row-reverse, wrap, and wrap-reverse). Flex-grow and flex-shrink don't have an impact on the stacking. Expected result: Flexbox items should stack when they don't fit horizontally. Testcase: http://codepen.io/Michiel/pen/b44eb081417fc226c794c8772eb8801e?editors=110 Use-cases: Automatic float based fallback for browsers that don't support flexbox, see this pen: http://codepen.io/heydon/pen/doZJXz/?editors=110
This is still a problem in the newly released Safari 9.
Safari, Chrome, and Firefox all agree on rendering for this test case. I don't believe there is any remaining compatibility issue.