adding prefers-reduced-motion

features/prefers-reduced-motion.md

@@ -0,0 +1,14 @@
+---
+title: CSS prefers-reduced-motion Media Feature
+category: css, media
+firefox_status: 63
+bugzilla: 1434491
+mdn_url: https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-reduced-motion
+spec_url: https://drafts.csswg.org/mediaqueries-5/#descdef-media-prefers-reduced-motion
+spec_repo: https://github.com/w3c/csswg-drafts/tree/master/mediaqueries-5
+ie_ref: 'Media Queries: prefers-reduced-motion'
+webkit_status: shipped
+caniuse_ref: prefers-reduced-motion
+---
+
+Used to detect if the user has enabled their system's setting for minimizing the amount of animation or motion it uses.