[css-position-3][css-display-3] Cross-link out-of-flow and better definition. w3c#5027

Author: fantasai

css-display-3/Overview.bs

@@ -1198,14 +1198,18 @@ Appendix A: Glossary</h2>
 				* (very loosely) any block-level box that establishes a new [=formatting context=]
 					(other than an inline formatting context)
 
-		<dt><dfn>out-of-flow</dfn>
-		<dt><dfn>in-flow</dfn>
+		<dt><dfn lt="out of flow | out-of-flow">out-of-flow</dfn>
+		<dt><dfn lt="in flow | in-flow">in-flow</dfn>
 		<dd>
-			A box is <a>out-of-flow</a> if it is floated (via 'float')
+			A box is <a>out-of-flow</a> if it is
+			extracted from its expected position and interaction with surrounding content
+			and laid out using a different paradigm
+			outside the normal flow of content in its parent formatting context.
+			This occurs if the box is floated (via 'float')
 			or [=absolutely positioned=] (via 'position').
 			A box is <a>in-flow</a> if it is not <a>out-of-flow</a>.
 
-			Note: some [=formatting contexts=] inhibit floating,
+			Note: Some [=formatting contexts=] inhibit floating,
 			so that an element with ''float: left'' is not necessarily <a>out-of-flow</a>.
 
 		<dt><dfn>document order</dfn>

css-position-3/Overview.bs

@@ -131,8 +131,8 @@ Introduction</h2>
 		in order to keep it visible when a scrollable ancestor
 		would otherwise scroll it out of sight.
 	* [=Absolute positioning=], which ignores normal layout entirely, 
-		pulling the element out of flow and
-		and positioning it relative to its [=containing block=]
+		pulling the element [=out of flow=] and
+		positioning it relative to its [=containing block=]
 		with no regard for other content.
 	* [=Fixed positioning=], which absolutely positions the box
 		and affixes it to the viewport or page frame
@@ -245,8 +245,8 @@ Choosing A Positioning Scheme: 'position' property</h2>
 
 	<dt><dfn>absolute</dfn>
 	<dd>
-		The box is taken out of flow,
-		meaning it has no impact on the size or position of its siblings and ancestors,
+		The box is taken [=out of flow=]
+		such that it has no impact on the size or position of its siblings and ancestors,
 		and does not participate in its parent’s [=formatting context=].
 
 		Instead, the box is positioned and sized solely in reference to
@@ -832,7 +832,7 @@ Fragmenting Absolutely-positioned Elements</h4>
 <h2 id="abspos-layout">
 Absolute Positioning Layout Model</h2>
 
-	[=Absolute positioning=] not only takes a box out of flow,
+	[=Absolute positioning=] not only takes a box [=out of flow=],
 	but also lays it out in its [=containing block=]
 	(after the final size of the [=containing block=] has been determined)
 	according to the <dfn export lt="absolute positioning layout | absolute postioning layout model">absolute positioning layout model</dfn>: