[css-values-3] Fix indentation. Whitespace only change.

Author: fantasai

css-values-3/Overview.bs

@@ -665,18 +665,18 @@ URL Modifiers</h4>
 <h2 id="numeric-types">
 Numeric Data Types</h2>
 
-		Properties may restrict numeric values to some range.
-		If the value is outside the allowed range,
-		unless otherwise specified,
-		the declaration is invalid and must be <a href="https://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.
-
-		CSS theoretically supports infinite precision and infinite ranges for all value types;
-		however in reality implementations have finite capacity.
-		UAs should support reasonably useful ranges and precisions.
+	Properties may restrict numeric values to some range.
+	If the value is outside the allowed range,
+	unless otherwise specified,
+	the declaration is invalid and must be <a href="https://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.
+
+	CSS theoretically supports infinite precision and infinite ranges for all value types;
+	however in reality implementations have finite capacity.
+	UAs should support reasonably useful ranges and precisions.
 <!--
-		The recommended minimum ranges and precision,
-		and the required rounding and clamping rules,
-		are given in <a href="#required-ranges">Appendix A</a>.
+	The recommended minimum ranges and precision,
+	and the required rounding and clamping rules,
+	are given in <a href="#required-ranges">Appendix A</a>.
 -->
 
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