[css-color-4] Parsed-value time is not a defined term

Author: Chris Lilley

css-color-4/Overview.bs

@@ -942,7 +942,7 @@ Representing Transparency: the <<alpha-value>> syntax</h3>
 	Unless otherwise specified,
 	an <<alpha-value>> component defaults to ''100%'' when omitted.
 	Values outside the range [0,1] are not invalid,
-	but are clamped to that range at [=parsed-value=] time.
+	but are clamped to that range at parsed-value time.
 
 <h3 id="hue-syntax">
 Representing Cylindrical-coordinate Hues: the <<hue>> syntax</h3>