Fix extra quote mark I introduced the revision before last.

Author: dbaron

css3-color/Overview.html

@@ -954,7 +954,7 @@ <h4 id=transparent><span class=secno>4.2.3. </span>&lsquo;<code
    keyword</h4>
 
   <p>CSS1 introduced the &lsquo;<code class=css><a
-   href="#transparent-def">'transparent</a></code>&rsquo;' value for the
+   href="#transparent-def">transparent</a></code>&rsquo; value for the
    background-color property. CSS2 allowed border-color to also accept the
    &lsquo;<code class=css><a
    href="#transparent-def">transparent</a></code>&rsquo; value. The Open

css3-color/Overview.src.html

@@ -562,7 +562,7 @@ <h4 id="rgba-color">RGBA color values</h4>
 
 <h4 id="transparent">''transparent'' color keyword</h4>
 
-<p>CSS1 introduced the '''transparent''' value for the background-color property.  CSS2 allowed border-color to also accept the ''transparent'' value.  The 
+<p>CSS1 introduced the ''transparent'' value for the background-color property.  CSS2 allowed border-color to also accept the ''transparent'' value.  The 
 Open eBook(tm)  Publication Structure 1.0.1 [[OEB101]] extended the 'color' property to also accept the ''transparent'' keyword. CSS3 extends the color value to include the ''transparent'' keyword to allow its use with all properties that accept a &lt;color&gt; value.  This simplifies the definition of those properties in CSS3.
 </p>