[css-fonts] tighthen definition of synthetic oblique

Author: John Daggett

css-fonts/Fonts.html

@@ -112,15 +112,15 @@
 
    <h1>CSS Fonts Module Level 3</h1>
 
-   <h2 class="no-num no-toc" id=editors-draft-30-april-2013>Editor's Draft 30
-    April 2013</h2>
+   <h2 class="no-num no-toc" id=editors-draft-7-may-2013>Editor's Draft 7 May
+    2013</h2>
 
    <dl id=authors>
     <dt>This version:
 
     <dd><a
      href="http://dev.w3.org/csswg/css-fonts/">http://dev.w3.org/csswg/css-fonts/</a>
-     <!-- <dd><a href="http://www.w3.org/TR/2013/ED-css3-fonts-20130430/">http://www.w3.org/TR/2013/ED-css3-fonts-20130430/</a> -->
+     <!-- <dd><a href="http://www.w3.org/TR/2013/ED-css3-fonts-20130507/">http://www.w3.org/TR/2013/ED-css3-fonts-20130507/</a> -->
 
 
     <dt>Latest version:
@@ -1266,9 +1266,12 @@ <h3 id=font-style-prop><span class=secno>3.4 </span>Font style: the <a
    ‘<code class=property>oblique</code>’. A value of ‘<code
    class=property>italic</code>’ selects a font that is labeled ‘<code
    class=property>italic</code>’, or, if that is not available, one labeled
-   ‘<code class=property>oblique</code>’. If no italic or oblique faces
-   is available, an oblique face can by synthesized by rendering the normal
-   face with a sloping transformation applied.
+   ‘<code class=property>oblique</code>’. If no italic or oblique face is
+   available, oblique faces can by synthesized by rendering non-obliqued
+   faces with a right sloping transformation applied. When synthesizing these
+   faces, the transformation should apply to all glyphs in the same way and
+   not vary based on codepoint or due to horizontal or vertical line
+   orientation.
 
   <p>Many scripts lack the tradition of mixing a cursive form within text
    rendered with a normal face. Chinese, Japanese and Korean fonts almost