mark the paragraph about default as a note

Author: tabatkins

css3-values/Overview.html

@@ -619,8 +619,8 @@ <h4 id=common-keywords><span class=secno>3.1.1. </span> CSS-wide keywords:
    initial value. <a href="#CSS3CASCADE"
    rel=biblioentry>[CSS3CASCADE]<!--{{CSS3CASCADE}}--></a>
 
-  <p> The <dfn id=default>‘<code class=css>default</code>’</dfn> keyword
-   is reserved for future use.
+  <p class=note> The <dfn id=default>‘<code
+   class=css>default</code>’</dfn> keyword is reserved for future use.
 
   <h3 id=strings><span class=secno>3.2. </span> Quoted Strings: the ‘<a
    href="#string-value"><code class=css>&lt;string></code></a>’ type</h3>

css3-values/Overview.src.html

@@ -307,7 +307,7 @@ <h4 id="common-keywords">
 	<p>The <dfn>''initial''</dfn> keyword represents the specified value that
 	is designated as the property's initial value. [[CSS3CASCADE]]
 
-	<p>
+	<p class='note'>
 		The <dfn>''default''</dfn> keyword is reserved for future use.