https://www.dummies.com/article/technology/programming-web-design/general-programming-web-design/use-css-allow-flex-items-shrink-254117/
How to Use CSS to Allow Flex Items to Shrink | dummies
how to useflex itemscssallowshrink
https://www.dummies.com/article/technology/programming-web-design/general-programming-web-design/use-css-allow-flex-items-grow-254114/
How to Use CSS to Allow Flex Items to Grow | dummies
how to useflex itemscssallowgrow