[css-sizing-4] References to Level 3 for missing sections.

Author: fantasai

css-sizing-4/Overview.bs

@@ -476,6 +476,10 @@ Min/Max Size Transfers</h3>
 <h2 id='intrinsic'>
 Intrinsic Size Determination</h2>
 
+<h3 id="intrinsic-contribution">
+Intrinsic Sizes</h3>
+
+	ISSUE: [[css-sizing-3#intrinsic-sizes]]
 
 <h3 id='intrinsic-size-override'>
 Overriding Contained Intrinsic Sizes: the 'contain-intrinsic-size' property</h3>
@@ -619,22 +623,10 @@ Interaction With ''overflow: auto''</h4>
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 -->
 
-<h2 id="intrinsic-contribution">
-Intrinsic Size Contributions</h2>
-
-	A box’s <a>min-content contribution</a>/<a>max-content contribution</a> in each axis
-	is the size of the content box
-	of a hypothetical ''width/auto''-sized float
-	that contains only that box,
-	if that hypothetical float's containing block is zero-sized/infinitely-sized.
-
-	Note: This specification does not define precisely how to determine these sizes.
-	Please refer to [[CSS2]],
-	the relevant CSS specification for that display type,
-	the <a href="#percentage-sizing">rules for handling percentages</a> (below),
-	and/or existing implementations
-	for further details.
+<h3 id="intrinsic-contribution">
+Intrinsic Size Contributions</h3>
 
+	ISSUE: [[css-sizing-3#intrinsic-contribution]]
 
 
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