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![Jacob Lett](https://ph-avatars.imgix.net/589508/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
This reference will help you write flexbox CSS properties as well as find the necessary Bootstrap 4 flex utility classes in order to make a responsive layout.
![CSS Flexbox Cheat Sheet](https://ph-files.imgix.net/0b625eec-6d4b-4680-8601-c797b10c469d.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
CSS Flexbox Cheat Sheet
Quickly reference the flexbox CSS properties
![Jacob Lett](https://ph-avatars.imgix.net/589508/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Core value: The ability for someone to add Bootstrap 4 to their resumé in 24 hours or less.
Problem: Existing books/courses re-explain what is already found in the official docs, is often out of date, takes too much time, hard to distribute to a classroom or team, not written for beginners, and it's hard to get help if you have questions.
Bootstrap 4 Quick Start
Bootstrap 4 training and certification for beginners