[css-cascade-4] Use the same preposition for both clauses.

Author: fantasai

css-cascade-4/Overview.bs

@@ -796,7 +796,7 @@ Cascade Order</h3>
 			When comparing two declarations
 			that are sourced from different [=encapsulation contexts=],
 			then for normal rules
-			the declaration in the outer context wins,
+			the declaration from the outer context wins,
 			and for [=important=] rules
 			the declaration from the inner context wins.
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