css - why isn't my flexbox flex-stretch property working? - Stack

I'm trying to get the three flex children boxes to stretch using flexbox to fill the container so that all three boxes are the same size. However, I don't want the first two inside boxes to stretch

Mastering Flexbox: The Ultimate CSS Layout Tool

flex-basis - CSS: Cascading Style Sheets

Mobile navigation with Flexbox - HTML-CSS - The freeCodeCamp Forum

Controlling ratios of flex items along the main axis - CSS

Flexbox Tutorial HTML & CSS Is Hard

How to use Flexbox to create a modern CSS card design layout

Is this buildable with flex, where flexboxes (of variable height

Flexbox Codrops

Learn CSS Flexbox in This Crash Course

CSS Flexbox 101- Introduction and sample patterns

A Complete Guide to Flexbox