[wp-trac] [WordPress Trac] #58164: Background overlay on theme page has layout issues

[WordPress Trac]

#58164: Background overlay on theme page has layout issues
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 Reporter:  zodiac1978                           |       Owner:  audrasjb
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  6.3
Component:  Themes                               |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-screenshots has-testing-info     |     Focuses:  ui, css
  has-patch                                      |
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Comment (by ironprogrammer):

 Regarding the first issue:
 > When the modal is open, the fly out-menus are below the background
 overlay.

 The preview backdrop is `z-index: 10000`:
 {{{#!css
 .theme-overlay .theme-backdrop {
         z-index: 10000;
 }
 }}}

 Perhaps `#adminmenuwrap` could be changed from `9990` to `10001`? Would
 this pose issues above the collapsed menu breakpoint? (At lower
 breakpoints, there are overrides in place.)
 {{{#!css
 #adminmenuwrap {
         z-index: 10001;
 }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/58164#comment:18>
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