diff --git a/mediaqueries-5/Overview.bs b/mediaqueries-5/Overview.bs
index 620fb2d03e7..d9e507ece32 100644
--- a/mediaqueries-5/Overview.bs
+++ b/mediaqueries-5/Overview.bs
@@ -478,6 +478,36 @@ Detecting the desire for less motion on the page: the 'prefers-reduced-motion' f
+
+Detecting the desire for reduced transparency on the page: the 'prefers-reduced-transparency' feature
+
+
+ Name: prefers-reduced-transparency
+ Value: no-preference | reduce
+ For: @media
+ Type: discrete
+
+
+ The 'prefers-reduced-transparency' media feature is used to detect if the user
+ has requested the system minimize the amount of transparent or translucent
+ layer effects it uses.
+
+
+ - no-preference
+
-
+ Indicates that the user has made no preference known
+ to the system. This keyword value evaluates as false
+ in the boolean context.
+
+
- reduce
+
-
+ Indicates that user has notified the system that they
+ prefer an interface that minimizes the amount of
+ transparent or translucent layer effects.
+
+
+
+
Changes
@@ -493,6 +523,10 @@ The following changes were made to this specification since the
Add 'prefers-reduced-motion' media feature.
+
+
+ Add 'prefers-reduced-transparency' media feature.
+