[various][meta] Strip trailing whitespace from several specs.

Author: tabatkins

css-contain-1/Overview.bs

@@ -128,7 +128,7 @@ Strong Containment: the 'contain' property</h2>
 			&lt;body>
 				&lt;aside>...&lt;/aside>
 				&lt;section>
-					&lt;h2>Messages&lt;/h2>				
+					&lt;h2>Messages&lt;/h2>
 					&lt;article>
 						Lol, check out this dog: images.example.com/jsK3jkl
 					&lt;/article>

css-inline-3/Overview.bs

@@ -46,7 +46,7 @@ Line Heights and Baseline Alignment</h2>
 	<p class="issue">This section is being rewritten. Refer to <a href="https://www.w3.org/TR/CSS2/visudet.html#line-height">section 10.8</a> of [[CSS2]] for the normative CSS definition or the <a href="https://www.w3.org/TR/2002/WD-css3-linebox-20020515/">2002 Working Draft</a> if you want pretty pictures. (But ignore the old text, half of it's wrong. We're not specifying which half, that's to be determined.)
 	<strong>The CSS2 specification should be used as the guideline for implementation.</strong></p>
 
-	Issue: The CSSWG would like to know which baseline values are necessary: if any can be dropped, or any need to be added. See GitHub issue <a href="https://github.com/w3c/csswg-drafts/issues/859">859</a>. 
+	Issue: The CSSWG would like to know which baseline values are necessary: if any can be dropped, or any need to be added. See GitHub issue <a href="https://github.com/w3c/csswg-drafts/issues/859">859</a>.
 
 <h3 id="dominant-baseline-property">
 Dominant Baselines: the 'dominant-baseline' property</h3>
@@ -279,7 +279,7 @@ Alignment Shift: 'baseline-shift' longhand</h4>
 	<p>User agents <em>may</em> additionally support the keyword <dfn for=baseline-shift>baseline</dfn>
 	as computing to ''0''
 	if is necessary for them to support legacy SVG content.
-	
+
 	Issue: We would prefer to remove this, and are looking for feedback from SVG user agents as to whether it's necessary.
 
 <h2 id="initial-letter-styling">
@@ -414,7 +414,7 @@ Raised Initial Letters</h4>
 
 <h4 id="initial-letter-punctuation">Initial Letter Punctuation</h4>
 
-Since <code>::first-letter</code> selects punctuation before or after the first letter, these characters are included in the initial-letter. 
+Since <code>::first-letter</code> selects punctuation before or after the first letter, these characters are included in the initial-letter.
 
 	<figure>
 		<img src="images/initial-letter-punctuation-quote.png" width="604"
@@ -511,10 +511,10 @@ Creating Initial Letters: the 'initial-letter' property</h3>
 	</div>
 
 	The 'initial-letter' property does not apply to boxes
-	that are not positioned at the start of the line due to bidi reordering. 
-	
-	The 'initial-letter' property is undefined on children of <a>ruby</a> base container boxes 
-	and on <a>ruby</a> container boxes. 
+	that are not positioned at the start of the line due to bidi reordering.
+
+	The 'initial-letter' property is undefined on children of <a>ruby</a> base container boxes
+	and on <a>ruby</a> container boxes.
 
 <h4 id="initial-letter-properties">
 Properties</h4>
@@ -785,7 +785,7 @@ Space Around Initial Letters</h3>
 	<figure>
 		<img src="images/Dropcap-J-3line-crash.png" width="480"
 		     alt="3-line drop cap with J, with descender crashing into fourth line of text">
-		<figcaption>Incorrect: three-line initial letter with descender. 
+		<figcaption>Incorrect: three-line initial letter with descender.
 		In this font, the capital “J” extends well below the baseline (shown in red).</figcaption>
 	</figure>
 
@@ -1049,22 +1049,22 @@ Clearing Initial Letters</h3>
 
 <h4 id="raised-sunken-caps">
 Raised and sunken caps</h4>
-<!--old text 
+<!--old text
 	An initial letter does not affect the position of its containing element.
 	For “raised caps” or “sunken caps,”
 	the effect is created as if the text around the initial letter was pushed down,
 	rather than the letter extending up into previous elements.
 
 -->
 
-	The margin box of an initial letter contributes to the size 
-	of its containing element. 
-	Initial letters that extend above the first line of text, 
-	known as “raised caps” or “sunken caps,” 
-	do not extend up into previous elements. 
-	Since the content box for an initial letter includes all glyph ink, 
-	this also means that accents or other ink 
-	above the cap height of an initial letter 
+	The margin box of an initial letter contributes to the size
+	of its containing element.
+	Initial letters that extend above the first line of text,
+	known as “raised caps” or “sunken caps,”
+	do not extend up into previous elements.
+	Since the content box for an initial letter includes all glyph ink,
+	this also means that accents or other ink
+	above the cap height of an initial letter
 	will not impinge on previous elements.
 
 
@@ -1158,9 +1158,9 @@ Appendix A: Synthesizing Alignment Metrics</h2>
 					descends below the alphabetic baseline
 					can be subtracted from its highest point
 					to <a href="https://drafts.csswg.org/css-values/#ex">measure the x-height</a>.
-					
+
 					<figure>
-						<img src="images/measuring-x-height-o.png" width="240" 
+						<img src="images/measuring-x-height-o.png" width="240"
 						alt="measuring the x height of the letter o"  >
 						<figcaption>
 							Measuring the x height.
@@ -1172,7 +1172,7 @@ Appendix A: Synthesizing Alignment Metrics</h2>
 					descends below the alphabetic baseline
 					can be subtracted from its highest point
 					to measure the cap-height.
-					
+
 
 
 				<li>
@@ -1223,9 +1223,9 @@ Appendix A: Synthesizing Alignment Metrics</h2>
 					</table>
 
 					Issue: Pick a default.
-					
+
 					<figure>
-						<img src="images/measuring-hanging-baseline-ka.png" width="240" 
+						<img src="images/measuring-hanging-baseline-ka.png" width="240"
 						alt="finding the position of the hanging baseline of the letter ka"  >
 						<figcaption>
 							The hanging baseline is at the top edge of the character ink.

css-multicol-1/Overview.bs

@@ -196,7 +196,7 @@ The multi-column model</h2>
 		<figure>
 			<img alt="a diagram showing the various parts of multi-column layout" src="images/initial-example-b.svg">
 			<figcaption>The same layout as in the first image, as it would be displayed by an implementation.</figcaption>
-		</figure>	
+		</figure>
 	</div>
 
 	If the multi-column container is paginated, the height of each row is
@@ -216,7 +216,7 @@ The multi-column model</h2>
 	</div>
 
 	Column boxes are block container boxes. The multi-column container is the principal box, and column boxes are anonymous.
-	
+
 	Note: Column boxes do not become the containing block for elements with ''position: fixed'' or ''position: absolute''. The containing block is the multicol element, it being the principal box.
 
 	<div class="example">
@@ -227,7 +227,7 @@ The multi-column model</h2>
 			position: relative;
 			column-count: 3;
 		}
-		img { 
+		img {
 			position: absolute;
 			top: 20px;
 			left: 40px;
@@ -520,14 +520,14 @@ Two assumptions are being made by the pseudo-algorithm:
 		In this example, the actual column-count is higher than the used column-count due to explicit column breaks:
 
 		<pre highlight="css">
-		div { 
-			width: 40em; 
-			columns: 20em; 
-			column-gap: 0; 
+		div {
+			width: 40em;
+			columns: 20em;
+			column-gap: 0;
 		}
 
-		p { 
-			break-after: column; 
+		p {
+			break-after: column;
 		}
 		</pre>
 
@@ -724,7 +724,7 @@ Column gaps and rules</h2>
 	</div>
 
 
-	
+
 
 <h2 id="column-breaks">
 Column breaks</h2>
@@ -834,9 +834,9 @@ section {
 	padding-top: 2em;
 }
 
-h2 { 
-	column-span: all; 
-	background: silver 
+h2 {
+	column-span: all;
+	background: silver
 }
 </pre>
 
@@ -881,7 +881,7 @@ h2 {
 		In paged media spanning elements are honored on all pages.
 		In this example, the first three paragraphs have column breaks after them.
 		An spanning <code>H2</code> element appears after the fourth paragraph.
-		
+
 
 		<figure>
 			<img src="images/spanner-page-break1.svg" alt="Three columns with two lines of text each">
@@ -982,30 +982,30 @@ Filling columns</h2>
 		columns due to column balancing.
 
 		<pre highlight="css">
-		article { 
-			width: 60em; 
-			height: auto; 
-			columns: 4; 
-			column-fill: balance; 
+		article {
+			width: 60em;
+			height: auto;
+			columns: 4;
+			column-fill: balance;
 		}
 		</pre>
 
 		<figure>
 			<img src="images/column-balancing-one-paragraph.svg" alt="Four columns, the first three have content.">
 			<figcaption>Three lines displayed in three columns due to column balancing.</figcaption>
 		</figure>
-		
+
 	</div>
 
 	<div class="example">
 		In this example, column balancing is turned off:
 
 		<pre highlight="css">
-		article { 
-			width: 60em; 
-			height: auto; 
-			columns: 4; 
-			column-fill: auto; 
+		article {
+			width: 60em;
+			height: auto;
+			columns: 4;
+			column-fill: auto;
 		}
 		</pre>
 
@@ -1021,15 +1021,15 @@ Filling columns</h2>
 		In this example, an article has two paragraphs: first a long one, then a shorter one. This code is applied:
 
 		<pre highlight="css">
-		article { 
-			width: 60em; 
-			height: auto; 
-			columns: 4; 
-			column-fill: balance; 
+		article {
+			width: 60em;
+			height: auto;
+			columns: 4;
+			column-fill: balance;
 		}
 
-		p { 
-			break-after: column; 
+		p {
+			break-after: column;
 		}
 		</pre>
 
@@ -1046,11 +1046,11 @@ Filling columns</h2>
 
 	<div class="example">
 		<pre highlight="css">
-		article { 
-			width: 60em; 
-			height: auto; 
-			columns: 4; 
-			column-fill: balance; 
+		article {
+			width: 60em;
+			height: auto;
+			columns: 4;
+			column-fill: balance;
 		}
 		</pre>
 
@@ -1138,11 +1138,11 @@ Pagination and overflow outside multicol containers</h3>
 			<img src="images/height-constraint-overflow-inline.svg" alt="Four columns, one outside the multicol container">
 			<figcaption>An overflow column is created in the inline direction.</figcaption>
 		</figure>
-		
+
 	</div>
 
 	<div class="example">
-		
+
 		In continuous media overflow columns can effect the height of the multicol container. In this example a column appears in the overflow which has four lines of text. The multicol container is made tall enough to accomodate this column.
 
 		<figure>