Generalize description of transition region so that it works for degenerate cases, too.

Author: fantasai

css3-background/Overview.html

@@ -22,13 +22,13 @@
 
    <h1>CSS Backgrounds and Borders Module Level 3</h1>
 
-   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 26 January
+   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 27 January
     2010</h2>
 
    <dl>
     <dt>This version:
 
-    <dd><!--<a href="http://www.w3.org/TR/2010/CR-css3-background-20100126">http://www.w3.org/TR/2010/ED-css3-background-20100126</a>-->
+    <dd><!--<a href="http://www.w3.org/TR/2010/CR-css3-background-20100127">http://www.w3.org/TR/2010/ED-css3-background-20100127</a>-->
      <a
      href="http://dev.w3.org/csswg/css3-background">http://dev.w3.org/csswg/css3-background</a>
 
@@ -2485,8 +2485,8 @@ <h3 id=the-border-radius><span class=secno>4.4. </span>The &lsquo;<code
     include that corner. Transitions may take up the entire transition
     region, but are not required to: For example, a gradient color transition
     between two solid border styles might take up only the region bounded by
-    the tips of the outer radii and the center of the inner curve
-    (represented in case D by the dark green region).
+    the tips of the outer radii and the tips of the inner radii (represented
+    in case D by the dark green region).
   </div>
 
   <p>Corner curves must not overlap: When the sum of any two adjacent border

css3-background/Overview.src.html

@@ -1802,7 +1802,7 @@ <h3 id="the-border-radius">The 'border-radius' properties</h3>
     to include that corner. Transitions may take up the entire transition
     region, but are not required to: For example, a gradient color transition
     between two solid border styles might take up only the region bounded
-    by the tips of the outer radii and the center of the inner curve
+    by the tips of the outer radii and the tips of the inner radii
     (represented in case D by the dark green region).
 </div>