[css-sizing-3] Fix markup

Author: fantasai

css-sizing-3/Overview.bs

@@ -2,13 +2,14 @@
 Title: CSS Intrinsic & Extrinsic Sizing Module Level 3
 Shortname: css-sizing
 Level: 3
-Status: ED
+Status: WD
 Work Status: Refining
 Group: csswg
 ED: https://drafts.csswg.org/css-sizing-3/
 TR: https://www.w3.org/TR/css-sizing-3/
 Editor: Tab Atkins, Google, http://xanthir.com/contact/, w3cid 42199
 Editor: Elika J. Etemad / fantasai, Invited Expert, http://fantasai.inkedblade.net/contact, w3cid 35400
+Previous version: https://www.w3.org/TR/2018/WD-css-sizing-3-20180304/
 Previous version: https://www.w3.org/TR/2017/WD-css-sizing-3-20170207/
 Abstract: This module extends the CSS sizing properties with keywords that represent content-based "intrinsic" sizes and context-based "extrinsic" sizes, allowing CSS to more easily describe boxes that fit their content or fit into a particular layout context.
 Ignored Terms: content box, border box, non-replaced
@@ -89,7 +90,7 @@ Terminology</h2>
 			alternatively a width and/or height.
 
 			<figure>
-				<img style="max-width: 49%;" src="images/sizing-ltr-tb.svg"><img style="max-width: 49%;" src="images/sizing-ttb-rl.svg">
+				<img style="max-width: 49%;" src="images/sizing-ltr-tb.svg" alt="In left-to-right, top-to-bottom horizontal English, the horizontal width and inline size are synonymous, and vertical height and block size are synonymous."><img style="max-width: 49%;" src="images/sizing-ttb-rl.svg" alt="In top-to-bottom, right-to-left vertical Japanese, the horizontal width and block size are synonymous, and vertical height and inline size are synonymous.">
 				<figcaption>Whether the <a>width</a> or <a>height</a> corresponds
 				to an <a>inline size</a> or <a>block size</a> depends on the <a>writing mode</a>.</figcaption>
 			</figure>
@@ -169,10 +170,11 @@ Auto Box Sizes</h3>
 	(sizes resulting from ''width/auto'' sizing rules, depending on context):
 
 	<dl export>
-		: <dfn>stretch-fit size</dfn>
-		: <dfn>stretch-fit inline size</dfn>
-		: <dfn>stretch-fit block size</dfn>
-		:: The <a>size</a> a box would take
+		<dt><dfn>stretch-fit size</dfn>
+		<dt><dfn>stretch-fit inline size</dfn>
+		<dt><dfn>stretch-fit block size</dfn>
+		<dd>
+			The <a>size</a> a box would take
 			if its <a>outer size</a> filled the <a>available space</a>
 			in the given axis;
 			in other words, the <a>stretch fit</a> into the <a>available space</a>,
@@ -186,8 +188,9 @@ Auto Box Sizes</h3>
 			for when the <a>available space</a> is <a>indefinite</a>
 			if that happens to be possible.
 
-		: <dfn lt="max-content | max-content size">max-content size</dfn>
-		:: A box’s “ideal” <a>size</a> in a given axis when given infinite available space.
+		<dt><dfn lt="max-content | max-content size">max-content size</dfn>
+		<dd>
+			A box’s “ideal” <a>size</a> in a given axis when given infinite available space.
 			Usually this is the smallest <a>size</a> the box could take in that axis
 			while still fitting around its contents,
 			i.e. minimizing unfilled space while avoiding overflow.
@@ -205,8 +208,9 @@ Auto Box Sizes</h3>
 			:: The box's “ideal” <a>size</a> in the <a>block axis</a>.
 				Usually the <a>block size</a> of the content after layout.
 
-		: <dfn lt="min-content | min-content size">min-content size</dfn>
-		:: The smallest <a>size</a> a box could take
+		<dt><dfn lt="min-content | min-content size">min-content size</dfn>
+		<dd>
+			The smallest <a>size</a> a box could take
 			that doesn't lead to overflow
 			that could be avoided by choosing a larger <a>size</a>.
 			(See [[#intrinsic]].)
@@ -226,10 +230,11 @@ Auto Box Sizes</h3>
 				and definitely for block-level and inline-level boxes,
 				this is equivalent to the <a>max-content block size</a>.
 
-		: <dfn>fit-content size</dfn>
-		: <dfn>fit-content inline size</dfn>
-		: <dfn>fit-content block size</dfn>
-		:: If the <a>available space</a> in a given axis is <a>definite</a>,
+		<dt><dfn>fit-content size</dfn>
+		<dt><dfn>fit-content inline size</dfn>
+		<dt><dfn>fit-content block size</dfn>
+		<dd>
+			If the <a>available space</a> in a given axis is <a>definite</a>,
 			equal to <code>min(<a>max-content size</a>, max(<a>min-content size</a>, <a>stretch-fit size</a>))</code>.
 			Otherwise, equal to the <a>max-content size</a> in that axis.
 
@@ -1254,7 +1259,7 @@ Changes</h2>
 		<li>Changed the ''*-content'' values applied to the bock axis
 			to not compute to the property’s initial value,
 			but to rather “behave as” the property’s initial value.
-			(<a href=https://github.com/w3c/csswg-drafts/issues/2708">#2708</a>)
+			(<a href="https://github.com/w3c/csswg-drafts/issues/2708">#2708</a>)
 		<li>Fixed miscellaneous trivial errors.
 	</ul>