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CSS CSS Flexbox Layout Flexbox Properties Smarter Layouts with flex-basis and flex

3 Answers

Steven Parker
Steven Parker
229,732 Points

Even MDN, my usual go-to reference, is a bit vague on this; but it does describe the amusing history of the "auto" setting. Apparently even the creators weren't sure what it should do and changed it a few times. See the MDN page on flex-basis.

Another good source of information is A Complete Guide to Flexbox on CSS Tricks.

But some time spent experimenting on a sandbox tool may be more valuable than any documentation.
My favorites are:

Steven Parker
Steven Parker
229,732 Points

That just means there's no minimum, so it fits the contents.