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Amandeep Pasricha14,932 Points
Why did he set all three columns to a flex basis of 0?
Wouldn't that mean they don't take up any space on the main axis?
Steven Parker216,865 Points
The "flex-basis"acts as a minimum size.
Also, when set to 0, the extra space around the content isn't factored in. If set to auto (the default setting), the extra space is distributed based on its "flex-grow" value.