CSS Gap Property: A Beginner's Guide To Perfectly Spaced Layouts
CSS: Flexbox
CSS Flex Container (With Examples)
Why does flexbox gap add white space before/after children, and how to avoid it? - General - Forum
CSS Flexbox and Its Properties - GeeksforGeeks
How to use percentage width children with flexbox gap? : r/Frontend
gap CSS-Tricks - CSS-Tricks
html - Remove space (gaps) between multiple lines of flex items when they wrap - Stack Overflow
How to add a space between the flex container?
Details on Flexbox Layout - Alibaba Cloud Community
CSS Gap creates a bright future for margins in Flex as well as Grid
Be careful when checking for support of the `gap` property - Lara L. Schenck
Mind the Flex-gap. Heydon Pickering is a clever chap. If…, by Jonathan Schofield
How to detect browser support for Flexbox Gap