align-items in CSS Flexbox – How to Layout Flex Children

align-items specify how browsers should position a flexible container's items along the cross-axis of a flexbox.

CSS Flexbox: Aligning Content Slightly Off-Center

flex-basis - CSS: Cascading Style Sheets

Basic concepts of flexbox - CSS: Cascading Style Sheets

html - Keep the middle item centered when side items have different widths - Stack Overflow

justify-content in CSS Flexbox – How to Layout Flex Children

Flexbox - Webflow University Documentation

Align items and justify content - Create Web Page Layouts With CSS - OpenClassrooms

The Ultimate Guide to Flexbox

Flexbox Codrops

Align box overview - Webflow University Documentation

A visual guide to CSS Flexbox

CSS Flexbox 101- Introduction and sample patterns

Display Flex Align Items: Tutorial (Examples)

Display Flex Align Items: Tutorial (Examples)

Flex Cheatsheet