Understanding Sizing in CSS Flexbox (A Practical Guide)

The first time I really tried to understand sizing in Flexbox, I got stuck. Not because I didn’t understand width and height .Not because I didn’t know flex-grow or flex-shrink . But because everything I thought I knew about sizing suddenly stopped applying . In normal layout, things feel predictable: Block elements fill width Height depends on content width and height behave like firm instructions Then Flexbox shows up… and starts bending those rules. The Moment Things Started Breaking I rememb