Understanding Focus in the Browser
It's difficult to implement good a11y for a web app without first understanding
I've practical knowledge of focus and how it works, particularly in relation to DOM events and CSS. I've limited theoretical knowledge about it.
- What is focus?
- What (precisely) can be focussed?
- What are the implications of an element being focussed?
- Relationship between focus, ARIA attributes and assistive tech like screen readers?
Starting point: html.spec.whatwg.org/multipage/interaction.html#focus