Microsoft&#x27;s OfficeUI Fabric respository: <a href="https:&#x2F;&#x2F;github.com&#x2F;OfficeDev&#x2F;Office-UI-Fabric" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;OfficeDev&#x2F;Office-UI-Fabric</a>