[css-fonts-4] [varfont] Clarify font-variation-settings for illegal axis values

Author: Litherum

css-fonts-4/Overview.bs

@@ -1206,15 +1206,12 @@ at least as dark as its predecessor. Only values between 1 - 999 are valid, and
 	<a href="https://www.microsoft.com/typography/otspec/fvar.htm">name rules</a>
 	defined in the OpenType specification.
 
-	Axis values not present in the font are ignored and therefore have no effect on font matching; a user agent must
-	not attempt to synthesize fallback behavior based on these feature
-	tags.
+	Axis values not present in the font, or axis values greater or less than the range supported by the font, are ignored and therefore have no effect; a user agent must
+	not attempt to synthesize fallback behavior based on these feature tags. Other axis values
+	within the same CSS 'font-variation-settings' statement are not ignored.
 
 	Values are allowed to be fractional or negative.
 
-	When values greater or less than the range supported by the font are
-	specified, the value is ignored and therefore has no effect on font matching.
-
 	If the same axis name appears twice, the second one supercedes the first.
 
 	Although specifically defined for OpenType / TrueType variations, variation axes