Examples of various form layouts built using CSS flexbox.
The Benefits of Using CSS Grid for Web Form Layout — SitePoint
Flexbox Example: flex vs inline-flex
Flexbox Form Examples
Angular in Depth
Flexbox: CSS Layout Design Done Right, Finally, by Ogilvy
Contact form using flexbox only
Angular in Depth
How I create a Contact Us form using Flexbox, by aliceyt
flex-basis - CSS: Cascading Style Sheets
Flex Two Columns: Ridiculously easy row and column layouts with Flexbox - DEV Community
How I create a Contact Us form using Flexbox, by aliceyt, The Startup
Contact US Form Using CSS Flexbox
CSS Flexbox Examples
html - CSS Flexbox (or Grid): 2 columns, row-wrapping, no growth
What Is the HTML Flexbox and How Do You Get Started Using It?