Make ::first-line's properties consistent with CSS2.1.

Author: fantasai

css3-background/Overview.html

@@ -410,8 +410,16 @@ <h3 id=placement><span class=secno>2.1. </span> Module Interactions</h3>
 
   <p>This module replaces and extends the background and border features
    defined in <a href="#CSS21" rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>
-   sections 8.5 and 14.2. All properties in this module apply to the
-   ::first-line and ::first-letter pseudo-elements.
+   sections 8.5 and 14.2.
+
+  <p>All properties in this module apply to the <a
+   href="http://www.w3.org/TR/CSS21/selector.html#first-letter"><code>::first-letter</code></a>
+   pseudo-element. The <a href="#backgrounds">background properties</a> also
+   apply to the <a
+   href="http://www.w3.org/TR/CSS21/selector.html#first-line-pseudo"><code>::first-line</code></a>
+   pseudo-element. The UA may, but is not required to, apply other properties
+   defined here to these pseudo-elements. <a href="#CSS21"
+   rel=biblioentry>[CSS21]<!--{{!CSS21}}--></a>
 
   <h3 id=value-types><span class=secno>2.2. </span> Value Types</h3>
 
@@ -4164,13 +4172,9 @@ <h3 id=the-box-shadow><span class=secno>7.2. </span>Drop Shadows: the
    </table>
   </div>
 
-  <p>The &lsquo;<a href="#box-shadow"><code
-   class=css>box-shadow</code></a>&rsquo; property applies to the
-   &lsquo;<code class=css>::first-letter</code>&rsquo; pseudo-element, but
-   not the &lsquo;<code class=css>::first-line</code>&rsquo; pseudo-element.
-   Outer shadows have no effect on internal table elements in the collapsing
-   border model. If a shadow is defined for single border edge in the
-   collapsing border model that has multiple border thicknesses (e.g. an
+  <p>Outer shadows have no effect on internal table elements in the
+   collapsing border model. If a shadow is defined for single border edge in
+   the collapsing border model that has multiple border thicknesses (e.g. an
    outer shadow on a table where one row has thicker borders than the others,
    or an inner shadow on a rowspanning table cell that adjoins cells with
    different border thicknesses), the exact position and rendering of its

css3-background/Overview.src.html

@@ -138,8 +138,15 @@ <h3 id="placement">
 
   <p>This module replaces and extends the background and border
   features defined in [[!CSS21]] sections 8.5 and 14.2.
-  All properties in this module apply to the ::first-line and
-  ::first-letter pseudo-elements.
+
+  <p>All properties in this module apply to the
+  <a href="http://www.w3.org/TR/CSS21/selector.html#first-letter"><code>::first-letter</code></a>
+  pseudo-element. The <a href="#backgrounds">background properties</a>
+  also apply to the
+  <a href="http://www.w3.org/TR/CSS21/selector.html#first-line-pseudo"><code>::first-line</code></a>
+  pseudo-element.
+  The UA may, but is not required to, apply other properties defined here
+  to these pseudo-elements. [[!CSS21]]
 
 <h3 id=value-types>
 Value Types</h3>
@@ -3028,8 +3035,7 @@ <h3 id="the-box-shadow">Drop Shadows: the 'box-shadow' property</h3>
 </table>
 </div>
 
-<p>The ''box-shadow'' property applies to the ''::first-letter'' pseudo-element,
-but not the ''::first-line'' pseudo-element. Outer shadows have no effect on
+<p>Outer shadows have no effect on
 internal table elements in the collapsing border model. If a shadow is defined
 for single border edge in the collapsing border model that has multiple border
 thicknesses (e.g. an outer shadow on a table where one row has thicker borders