[wp-trac] [WordPress Trac] #45902: Twenty Nineteen: Mobile menu isn't scrollable

[WordPress Trac]

#45902: Twenty Nineteen: Mobile menu isn't scrollable
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 Reporter:  kjellr         |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Bundled Theme  |    Version:  5.0.2
 Severity:  normal         |   Keywords:
  Focuses:                 |
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 As originally reported by @anevins in the Twenty Nineteen GitHub repo:

 https://github.com/WordPress/twentynineteen/issues/713

 Twenty Nineteen's mobile menu uses a `fixed` position, and does not allow
 for vertical scrolling when menu items extend beyond the screen height. In
 this screenshot for instance, it's impossible to scroll down and see the
 additional menu items:

 [[Image(https://cldup.com/-nMFdadUIZ-3000x3000.png)]]

 Normally, this would be solved by applying `display: block` (instead of
 `table`), and `overflow-x: scroll` to the submenu. However, in this case,
 that results in long menus visible under their children submenus:

 [[Image(https://cldup.com/x3H73ceFfZ.gif)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/45902>
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