diff --git a/mediaqueries-5/Overview.bs b/mediaqueries-5/Overview.bs index a6d32bc3c4e..3ad02ede47a 100644 --- a/mediaqueries-5/Overview.bs +++ b/mediaqueries-5/Overview.bs @@ -2273,25 +2273,11 @@ Detecting UA-supplied navigation controls: the 'nav-controls' feature } } - As this media feature can be used in a [=boolean context=], - the same example can be written with shorter syntax: - -

-		@media (nav-controls) {
-			#back-button {
-				display: none;
-			}
-		}
- - Note: Theoretically, the two are not strictly equivalent, - as there could be new values in a future extension of this media feature - other than ''back'' - that could match when ''back'' doesn't. - In that case, using the 'nav-controls' feature in a boolean context could be misleading. - However, given that navigation back is arguably the most fundamental navigation operation, - the CSS Working Group does not anticipate - user interfaces with explicit navigation controls but no back button, - so this problem is not expected to occur in practice. + Note: This media feature can also be used in a [=boolean context=], e.g., + @media (nav-controls). However, as there could be new values in a future + extension of this media feature other than ''back'', use of the ''nav-controls'' feature in a boolean + context could cause the page to incorrectly interpret some other control as a "back" button, and its + usage is therefore discouraged. Whether [=obviously discoverable=] controls are active does not impact the evaluation of this media feature.