[css-text-4] text-space-trim applies to block containers w3c#6923

Author: fantasai

css-text-4/Overview.bs

@@ -884,7 +884,7 @@ White Space Trimming: the 'text-space-trim' property</h3>
 	Name: text-space-trim
 	Value: none | trim-inner || discard-before || discard-after
 	Initial: none
-	Applies to: [=inline boxes=]
+	Applies to: [=inline boxes=] and [=block containers=]
 	Inherited: no
 	Percentages: n/a
 	Computed value: specified keyword(s)