[css-conditional-4][editorial] Fixed examples (w3c#12693)

Author: SebastianZ

css-conditional-4/Overview.bs

@@ -21,7 +21,7 @@ Abstract: This module contains the features of CSS
 	the style sheet is being applied in.
 	It includes and extends the functionality of CSS Conditional 3 [[!css-conditional-3]],
 	adding the ability to query support for particular selectors [[SELECTORS-4]]
-	through the new 
+	through the new
 	<a href="#typedef-supports-selector-fn">''selector()''</a> notation for [=supports queries=].
 Default Highlight: css
 WPT Path Prefix: css/css-conditional/
@@ -99,27 +99,25 @@ This includes namespace prefixes inside the selector function.
 
 <div class="invalid example" id="ex-ns-selector-invalid">
 	This example tries to check that attribute selectors
-	with [=CSS qualified name=]s are supported,
+	with [=CSS qualified name|CSS qualified names=] are supported,
 	but is invalid,
 	because the namespace prefix has not been declared.
 
 	<pre class="lang-css">
 		@supports selector(a[xlink|href]) {
 			// do something, but fail
-			}
 		}
 	</pre>
 </div>
 
 <div class="example" id="ex-ns-selector">
 	This example checks that attribute selectors
-	with [=CSS qualified name=]s are supported.
+	with [=CSS qualified name|CSS qualified names=] are supported.
 
 	<pre class="lang-css">
 		@namespace x url(http://www.w3.org/1999/xlink);
 		@supports selector(a[x|href]) {
 			// do something
-			}
 		}
 	</pre>
 </div>