When building SharePoint Framework solutions, you can use CSS to define how your customization should look like and behave.
Feel free to mark as completed - [x] Concept name
every concept you've already fully understand. To learn a new concept go to the resources section and read/practice about it. As soon as you have fully understood all the concepts on this chapter go to the next chapter.
- SharePoint design principles
- CSS
- SASS
- Office UI Fabric
- Themes