[wp-trac] [WordPress Trac] #27039: Twenty Thirteen: Make the menu keyboard accessible

[WordPress Trac]

#27039: Twenty Thirteen: Make the menu keyboard accessible
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 Reporter:  Frank Klein    |      Owner:
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Themes         |    Version:  3.6
 Severity:  normal         |   Keywords:
  Focuses:  accessibility  |
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 Currently it is not possible to access the drop down menus in Twenty
 Thirteen using the keyboard. The attached patch fixes this.

 It also changes the way that the display of the drop down menus is
 handled. The problem with using `display: none` is that the browser
 doesn't take these elements into account when determining tab order.

 If you use another CSS technique for handling this (is Twenty Fourteen
 does), the tab order will be correct, i.e. it will follow the structure of
 the lists of which the navigation is composed. You can test this by using
 Tab and Shift+Tab to navigate forward and backward through the menu items.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27039>
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