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Office 365

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A while ago, I wrote an SPFx Application Customizer that allows you to insert custom CSS on your SharePoint modern pages and posted about it.

The solution is now a sample in the SharePoint SharePoint Framework Extensions Samples & Tutorial Materials repo.

I received lots of feedback, comments and questions about the article so I decided to write an updated article to answer the most frequently asked questions.

I have since updated the solution to SPFx 1.8 and created a simple automated deployment script to (hopefully) reduce issues.