[wp-trac] [WordPress Trac] #42203: Ensure media & embeds in Text widget are styled properly across widget areas in bundled themes

[WordPress Trac]

#42203: Ensure media & embeds in Text widget are styled properly across widget
areas in bundled themes
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 Reporter:  westonruter     |      Owner:
     Type:  task (blessed)  |     Status:  new
 Priority:  high            |  Milestone:  4.9
Component:  Widgets         |    Version:
 Severity:  normal          |   Keywords:
  Focuses:                  |
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 The Text widget now allows for media to be embedded within it as of
 #40854. There is an Add Media button allowing for images, videos, and
 other embeds to be added to the content. Themes may not have styles in
 them that expect media to appear in a Text widget context, since
 previously they may have only appeared in post content. As noted in
 §Default Themes Updates for [https://make.wordpress.org/core/2017/05/26
 /media-widgets-for-images-video-and-audio/ Media Widgets for Images,
 Video, and Audio]:

 > Themes that add custom styles to the MediaElement.js player (namely
 Twenty Thirteen and Twenty Fourteen) were updated from just styling it
 within syndicated content, to also include instances within widgets. Most
 themes don’t restrict styles for captioned images or media players to just
 post content, that is, limit CSS selectors to classes output by
 post_class(). If your theme does, make sure to either remove that
 constraint or include a .widget selector.

 In the same way for the embeds in the Text widget, we need to make sure
 that all of the core themes are compatible. Text widgets need to be tested
 in all core themes and in each of their widget areas.

 Once the core themes are updated then the changes will may be instructive
 for theme authors to make similar changes in their themes.

 See same task for Gallery widget in #41969.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42203>
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