CSS Generator online, has automated tools that allow us to accelerate the design of websites.

If you find some of the other flexbox tools a little harder to work with, Flexy Boxes might be a good choice.

Toptal's CSS3 Generator Tool allows you to easily generate useful snippets of CSS3

Website code generator for web developers. Generate HTML, CSS, Twitter Card

Tool for build your flexbox layout in a few seconds and learn css flex from predefined examples.

Create gradient code in RGBA, HEX, Canvas, SVG, SwiftUI and Android XML in radial, linear, elliptical and conical