Some wording improvements.

Author: fantasai

css3-page/Overview.html

@@ -607,12 +607,11 @@ <h3 id=painting><span class=secno>4.1. </span> Page Backgrounds and
     background: its <a
     href="http://www.w3.org/TR/css3-background/#background-painting-area"><i>background
     painting area</i></a> is the entire page box, including its margins.
-    Background images are positioned under similar rules as the root element.
-    By default, they are anchored within the page box's padding area (and
-    honor ‘<code class=property>background-origin</code>’ if the UA
-    supports <a href="#CSS3BG"
-    rel=biblioentry>[CSS3BG]<!--{{!CSS3BG}}--></a>). However if ‘<code
-    class=property>background-attachment</code>’ is ‘<code
+    Similar to backgrounds on the root element, page backgrounds are anchored
+    within the page box's padding area by default (and honor ‘<code
+    class=property>background-origin</code>’ if the UA supports <a
+    href="#CSS3BG" rel=biblioentry>[CSS3BG]<!--{{!CSS3BG}}--></a>). However
+    if ‘<code class=property>background-attachment</code>’ is ‘<code
     class=css>fixed</code>’ then the image is positioned relative to the
     page box including its margins (i.e. the <a
     href="http://www.w3.org/TR/css3-background/#background-positioning-area"><i>background
@@ -621,11 +620,11 @@ <h3 id=painting><span class=secno>4.1. </span> Page Backgrounds and
 
    <p>The document canvas background is drawn as the page box's background:
     by default its <i>background painting area</i> is the page box's border
-    box. (For UAs that support <a href="#CSS3BG"
-    rel=biblioentry>[CSS3BG]<!--{{!CSS3BG}}--></a>, it follows the ‘<code
+    box, and for UAs that support <a href="#CSS3BG"
+    rel=biblioentry>[CSS3BG]<!--{{!CSS3BG}}--></a>, follows the ‘<code
     class=property>background-clip</code>’ value specified on the root
-    element.) It remains, however, positioned with respect to the root
-    element or page area as usual.
+    element. It remains, however, positioned with respect to the root element
+    or page area as usual.
 
    <p>The UA may support the <code>z-index</code> property for margin boxes.
     With respect to the margin boxes, the document canvas, page borders, and

css3-page/Overview.src.html

@@ -352,17 +352,17 @@ <h3 id="painting">
   <p>In the page model, the page background behaves similar to the root background:
   its <a href="http://www.w3.org/TR/css3-background/#background-painting-area"><i>background painting area</i></a>
   is the entire page box, including its margins.
-  Background images are positioned under similar rules as the root element.
-  By default, they are anchored within the page box's padding area
+  Similar to backgrounds on the root element,
+  page backgrounds are anchored within the page box's padding area by default
   (and honor 'background-origin' if the UA supports [[!CSS3BG]]).
   However if 'background-attachment' is ''fixed''
   then the image is positioned relative to the page box including its margins
   (i.e. the <a href="http://www.w3.org/TR/css3-background/#background-positioning-area"><i>background positioning area</i></a>,
   like the <i>background painting area</i>, is the page's margin box).
 
   <p>The document canvas background is drawn as the page box's background:
-  by default its <i>background painting area</i> is the page box's border box.
-  (For UAs that support [[!CSS3BG]], it follows the 'background-clip' value specified on the root element.)
+  by default its <i>background painting area</i> is the page box's border box,
+  and for UAs that support [[!CSS3BG]], follows the 'background-clip' value specified on the root element.
   It remains, however, positioned with respect to the root element
   or page area as usual.