[css-sizing] Collapse together some identical inline/block definitions.

Author: tabatkins

css-sizing/Overview.bs

@@ -120,21 +120,12 @@ Auto Box Sizes</h3>
 
 	<div export>
 		: <dfn>fill-available size</dfn>
+		: <dfn>fill-available inline size</dfn>
+		: <dfn>fill-available block size</dfn>
 		:: Roughly, the <a>size</a> a box would take
 			if it filled its <a>available size</a>
 			in a given axis.
-
-			: <dfn>fill-available inline size</dfn>
-			:: Roughly, the <a>inline-size</a> a box would take
-				if it filled its <a>available inline size</a>.
-				(See [[#extrinsic]].)
-
-				Note: This is called the “available width” in <a href="http://www.w3.org/TR/CSS21/visudet.html#float-width">CSS2.1§10.3.5</a>
-				and computed by the rules in <a href="http://www.w3.org/TR/CSS21/visudet.html#blockwidth">CSS2.1§10.3.3</a>.
-			: <dfn>fill-available block size</dfn>
-			:: Roughly, the <a>block-size</a> a box would take
-				if it filled its <a>available block size</a>.
-				(See [[#intrinsic]].)
+			(See [[#extrinsic]].)
 
 		: <dfn>max-content size</dfn>
 		:: Roughly, the narrowest <a>size</a> a box could take in a given axis while fitting around its contents
@@ -176,17 +167,14 @@ Auto Box Sizes</h3>
 				even if they are the same elsewhere.
 
 		: <dfn>fit-content size</dfn>
+		: <dfn>fit-content inline size</dfn>
+		: <dfn>fit-content block size</dfn>
 		:: If the <a>available size</a> in a given axis is finite,
 			equal to <code>min(<a>preferred size</a>, max(<a>min-content size</a>, <a>fill-available size</a>))</code>.
 			Otherwise, equal to the <a>max-content size</a> in that axis.
 
-			: <dfn>fit-content inline size</dfn>
-			:: As described for <a>fit-content size</a>, in the <a>inline axis</a>.
-
-				Note: This is called the “shrink-to-fit” width in <a href="http://www.w3.org/TR/CSS21/visudet.html#float-width">CSS2.1§10.3.5</a>
-				and <a href="http://www.w3.org/TR/css3-multicol/#pseudo-algorithm">CSS Multi-column Layout § 3.4</a>.
-			: <dfn>fit-content block size</dfn>
-			:: As described for <a>fit-content size</a>, in the <a>block axis</a>.
+			Note: This is called the “shrink-to-fit” width in <a href="http://www.w3.org/TR/CSS21/visudet.html#float-width">CSS2.1§10.3.5</a>
+			and <a href="http://www.w3.org/TR/css3-multicol/#pseudo-algorithm">CSS Multi-column Layout § 3.4</a>.
 
 		: <dfn>preferred size</dfn>
 		:: A box’s “ideal” <a>size</a> in a given axis.