[css-fonts-4][editorial] wpt

Author: Chris Lilley

css-fonts-4/Overview.bs

@@ -7746,6 +7746,10 @@ Serializing font-related at-rules
 	(the range is zero)
 	the descriptor is serialized as a single value, not a range.
 
+<wpt>
+	variations/at-font-face-descriptors.html
+</wpt>
+
 	<div class="example" id="ex-zero-range">
 		For example, the rule