Andrea Fercia 66eb13d3b2 Accessibility: Make some Widgets buttons real buttons.
Links used as UI controls that behave like buttons, should be buttons.
- changes the widgets "toggle", "Delete", and "Close" links to buttons
- uses `aria-expanded` to announce the state of the toggle buttons
- increases a bit the clickable area of the toggle
- ensures the "circular focus" doesn't get cut-off in some browsers by centering the toggle arrows
- uses a `<span>` element with an `aria-hidden` attribute to hide CSS generated font icons from assistive technologies
- standardizes on `.toggle-indicator:before` rather than `:after`
- changes two `#f00` reds in `#dc3232`, see #35622

Fixes #31476.


git-svn-id: https://develop.svn.wordpress.org/trunk@40480 602fd350-edb4-49c9-b593-d223f7449a82
2017-04-19 21:13:53 +00:00
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