[css-color-4] Markup fixes.

Author: tabatkins

css-color-4/Overview.bs

@@ -376,7 +376,7 @@ Color Keywords</h2>
 
 <h3 id="named-colors">
 Named Colors</h3>
-	
+
 	CSS defines a large set of <dfn id="named-color" lt="named color" export>named colors</dfn>,
 	so that common colors can be written and read more easily.
 	A <dfn>&lt;named-color></dfn> is written as an <<ident>>,
@@ -715,22 +715,22 @@ For historical reasons, this is also referred to as the X11 color set.
 <h3 id="css-system-colors">
 CSS System Colors</h3>
 
-	In addition to being able to assign color keyword values to text, backgrounds, etc., 
-	CSS defines a set of <dfn id="system-color" type="value" export>&lt;system-color></dfn> values, 
+	In addition to being able to assign color keyword values to text, backgrounds, etc.,
+	CSS defines a set of <dfn>&lt;system-color></dfn> values,
 	to allow authors to specify colors in a manner that integrate them into the user's graphic environment.
 
 	<<system-color>>s incur some privacy and security risk, as detailed in [[#priv-sec]].
 
-	For systems that do not have a corresponding value, 
-	the specified value should be mapped to the nearest system color value, 
-	or to a default color. 
+	For systems that do not have a corresponding value,
+	the specified value should be mapped to the nearest system color value,
+	or to a default color.
 	Note that some profiles of CSS may not support System Colors at all.
 
-	The following lists the additional values for color-related CSS values and their general meaning. 
-	Any color property can take one of the following names. 
+	The following lists the additional values for color-related CSS values and their general meaning.
+	Any color property can take one of the following names.
 	These names are case-insensitive and shown here with mixed capitalization for legibility.
 
-	<dl id="system-color-values" data-dfn-type="value" dfn-for="<system-color>" export>
+	<dl id="system-color-values" data-dfn-type="value" dfn-for="<system-color>">
 		<dt><dfn>ActiveText</dfn>
 		<dd>Text in active links.
 		<dt><dfn>ButtonFace</dfn>
@@ -2919,9 +2919,9 @@ Appendix A: Deprecated CSS System Colors</h2>
 <h2 id="acknowledgments" class="no-num no-ref">
 Acknowledgments</h2>
 
-Thanks to Brad Pettit both for writing up color-profiles, and for implementing it. 
-Thanks to Steven Pemberton for his write-up on HSL colors. 
-Thanks to Melanie Richards for updating the system colors write-up. 
+Thanks to Brad Pettit both for writing up color-profiles, and for implementing it.
+Thanks to Steven Pemberton for his write-up on HSL colors.
+Thanks to Melanie Richards for updating the system colors write-up.
 Thanks especially to the feedback from Marc Attinasi, Bert Bos, Joe Clark, fantasai, Patrick Garies, Tony Graham, Ian Hickson, Susan Lesch, Alex LeDonne, Cameron McCormack, Krzysztof Maczy&#x0144;ski, Chris Moschini, Chris Murphy, Christoph P&auml;per, David Perrell, Jacob Refstrup, Dave Singer, Jonathan Stanley, Andrew Thompson, Russ Weakley, Etan Wexler, David Woolley, Boris Zbarsky, Steve Zilles, the XSL FO subgroup of the XSL working group, and all the rest of the <a href="http://lists.w3.org/Archives/Public/www-style/">www-style</a> community.
 
 And thanks to Chris Lilley for being the resident CSS Color expert.
@@ -3016,5 +3016,5 @@ if they actually correspond to the user's system colors,
 also pose a security risk,
 as they make it easier for a malware site
 to create user interfaces that appear to be from the system.
-However, as several system colors are now defined to be "generic", 
-this risk should be mitigated.
+However, as several system colors are now defined to be "generic",
+this risk should be mitigated.