remove more instances of the A variable

Author: annevk

cssom-view/Overview.html

@@ -1026,14 +1026,14 @@ <h3 id=scroll-attributes><span class=secno>5.2. </span>The <code
 
    <li>
     <dl>
-     <dt>If <var>A</var> can have overflow to the right
+     <dt>If the element can have overflow to the right
 
      <dd>
       <p>Let <var title="">x</var> be max(0, min(<var title="">x</var>, <a
        href="#content">content</a> width - <a href="#content-edge">content
        edge</a> width)).
 
-     <dt>If <var>A</var> can have overflow to the left (under right-to-left
+     <dt>If the element can have overflow to the left (under right-to-left
       conditions)
 
      <dd>

cssom-view/Overview.src.html

@@ -811,13 +811,13 @@ <h3 id="scroll-attributes">The <code title="">scrollTop</code>,
 
    <li>
     <dl>
-     <dt>If <var>A</var> can have overflow to the right</dt>
+     <dt>If the element can have overflow to the right</dt>
 
      <dd><p>Let <var title="">x</var> be max(0, min(<var title="">x</var>,
      <span>content</span> width -
      <span>content edge</span> width)).</p></dd>
 
-     <dt>If <var>A</var> can have overflow to the left (under right-to-left
+     <dt>If the element can have overflow to the left (under right-to-left
      conditions)</dt>
 
      <dd><p>Let <var title="">x</var> be min(0, max(<var title="">x</var>,