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Add Sass variable for prefers-reduced-motion, add callout to affected components (#27581)

* Tweak the accessibility/reduced motion text

include mention of carousel slides, remove the (now inaccurate, as Firefox 63 includes it too) mention that support is limited to Safari/macOS

xref https://github.com/twbs/bootstrap/issues/27525

* Add new callout for reduced motion

* Add variable to control prefers-reduced-motion media query support

* Add callout about prefers-reduced-motion to all components currently using animation which are affected
This commit is contained in:
Patrick H. Lauke
2018-11-03 19:23:26 +01:00
committed by GitHub
parent f7a4b39767
commit 8b20bce873
11 changed files with 32 additions and 12 deletions
@@ -45,7 +45,7 @@ For visually hidden interactive controls, such as traditional "skip" links, `.sr
### Reduced motion
Bootstrap includes support for the [`prefers-reduced-motion` media feature](https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-motion). In browsers/environments that allow the user to specify their preference for reduced motion, most CSS transition effects in Bootstrap (for instance, when a modal dialog is opened or closed) will be disabled. Currently, support is limited to Safari on macOS and iOS.
Bootstrap includes support for the [`prefers-reduced-motion` media feature](https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-motion). In browsers/environments that allow the user to specify their preference for reduced motion, most CSS transition effects in Bootstrap (for instance, when a modal dialog is opened or closed, or the sliding animation in carousels) will be disabled.
## Additional resources