chapter 6 - styles.css file is incomplete

[SwTeq]

Hi!
During chapter 6 - "Adding Forms to Components" I'm told to update the styles.css file, yet the attached file contains even less information/styling than the one included in the starting project. It doesn't style the newly added form and also breaks the rest of the site.

Update: Just to further document similar issues for others, since atleast one other person had this come up as well:
With the next two subsections after "Scoping CSS Styles to Components" the issue of the unstyled form and its labels are indeed fixed. If you encounter an unstyled "Submit" button like me, remember to check if you've added "ButtonComponent" as an import in the "new-ticket.component.ts" file.
(small note: the mentioned updated "button.component.css" file is not found in the attachment part of this repo, but you'll find it in the "code snapshots" part)