[css-text-4] Fix validation issues.

Author: fantasai

css-text-4/Overview.bs

@@ -1065,27 +1065,27 @@ Fullwidth Punctuation Collapsing</h4>
 						<th>Sample Pair
 						<th>Looks Like
 			<tbody>
-				<tr><td scope=row>Opening&#8212;Opening
-						<td><tt lang="ja" class="char">〔</tt>+<tt lang="ja" class="char">（</tt>
-						<td><tt lang="ja" class="char">〔</tt><tt lang="ja" class="char half-r">(</tt>
-				<tr><td scope=row>Middle Dot&#8212;Opening
-						<td><tt lang="ja" class="char">・</tt>+<tt lang="ja" class="char">（</tt>
-						<td><tt lang="ja" class="char">・</tt><tt lang="ja" class="char">(</tt>
-				<tr><td scope=row>Closing&#8212;Opening
-						<td><tt lang="ja" class="char">〕</tt>+<tt lang="ja" class="char">（</tt>
-						<td><tt lang="ja" class="char">)<span class="quarter">&#x3000;</span></tt><tt lang="ja" class="char"><span class="quarter">&#x3000;</span>(</tt>
-				<tr><td scope=row>Ideographic Space&#8212;Opening
-						<td><tt lang="ja" class="char">　</tt>+<tt lang="ja" class="char">（</tt>
-						<td><tt lang="ja" class="char">　</tt><tt lang="ja" class="char">(</tt>
-				<tr><td scope=row>Closing&#8212;Closing
-						<td><tt lang="ja" class="char">）</tt>+<tt lang="ja" class="char">〕</tt>
-						<td><tt lang="ja" class="char">)</tt><tt lang="ja" class="char">〕</tt>
-				<tr><td scope=row>Closing&#8212;Middle Dot
-						<td><tt lang="ja" class="char">）</tt>+<tt lang="ja" class="char">・</tt>
-						<td><tt lang="ja" class="char">)</tt><tt lang="ja" class="char">・</tt>
-				<tr><td scope=row>Closing&#8212;Ideographic Space
-						<td><tt lang="ja" class="char">）</tt>+<tt lang="ja" class="char">　</tt>
-						<td><tt lang="ja" class="char">)</tt><tt lang="ja" class="char">　</tt>
+				<tr><th scope=row>Opening&#8212;Opening
+						<td><samp lang="ja" class="char">〔</samp>+<samp lang="ja" class="char">（</samp>
+						<td><samp lang="ja" class="char">〔</samp><samp lang="ja" class="char half-r">(</samp>
+				<tr><th scope=row>Middle Dot&#8212;Opening
+						<td><samp lang="ja" class="char">・</samp>+<samp lang="ja" class="char">（</samp>
+						<td><samp lang="ja" class="char">・</samp><samp lang="ja" class="char">(</samp>
+				<tr><th scope=row>Closing&#8212;Opening
+						<td><samp lang="ja" class="char">〕</samp>+<samp lang="ja" class="char">（</samp>
+						<td><samp lang="ja" class="char">)<span class="quarter">&#x3000;</span></samp><samp lang="ja" class="char"><span class="quarter">&#x3000;</span>(</samp>
+				<tr><th scope=row>Ideographic Space&#8212;Opening
+						<td><samp lang="ja" class="char">　</samp>+<samp lang="ja" class="char">（</samp>
+						<td><samp lang="ja" class="char">　</samp><samp lang="ja" class="char">(</samp>
+				<tr><th scope=row>Closing&#8212;Closing
+						<td><samp lang="ja" class="char">）</samp>+<samp lang="ja" class="char">〕</samp>
+						<td><samp lang="ja" class="char">)</samp><samp lang="ja" class="char">〕</samp>
+				<tr><th scope=row>Closing&#8212;Middle Dot
+						<td><samp lang="ja" class="char">）</samp>+<samp lang="ja" class="char">・</samp>
+						<td><samp lang="ja" class="char">)</samp><samp lang="ja" class="char">・</samp>
+				<tr><th scope=row>Closing&#8212;Ideographic Space
+						<td><samp lang="ja" class="char">）</samp>+<samp lang="ja" class="char">　</samp>
+						<td><samp lang="ja" class="char">)</samp><samp lang="ja" class="char">　</samp>
 		</table>
 	</div>