Non 12-divisible Equal columns on Bootstrap 4
问题 I have a little web app that I want to show 5 columns responsive equal width. But I only want this layout for a devices with ≥992px of width. For devices <992px of width I want to show the 5 HTML elements in one full-width row. Equal-width columns can be broken into multiple lines, but there was a Safari flexbox bug that prevented this from working without an explicit flex-basis or border . Two workarounds have been documented in a reduced test case outside Bootstrap, though if the browser is