guideline: Navigable
Help users find their way and know where they are in the website.
2.4.7 Focus Visible
There’s visible keyboard focus styling to indicate which element you’re currently focused on.
2.4.8 Location
The user is clearly informed where they are in a set of pages.
2.4.9 Link Purpose (Link Only)
It is clear where a link will take you from the link text alone, without having to read the text around it.
