Try to rephrase the flexbox fixup as operating on elements. Hope this makes sense

--HG--
extra : rebase_source : 4fbaee830de0ec25b484f75b216d6f572915889b

Author: tabatkins

css3-flexbox/Overview.src.html

@@ -122,7 +122,7 @@ <h3 id="values">
 <h2 id='box-model'>
 The Flexbox Box Model</h2>
 
-	<p>An element with ''display:flexbox'' or ''display:inline-flexbox'' is a <dfn>flexbox</dfn>.  Children of a flexbox are called <dfn title="flexbox item|flexbox items|flexbox item's" id="flexbox-item">flexbox items</dfn> and are laid out using the flexbox box model.</p>
+	<p>An element with ''display:flexbox'' or ''display:inline-flexbox'' is a <dfn>flexbox</dfn>.  Children of a flexbox are called <i>flexbox items</i> and are laid out using the flexbox box model.</p>
 
 	<p>Unlike block layout, which is normally biased towards laying things out vertically, and inline layout, which is normally biased toward laying things out horizontally, the flexbox layout algorithm is agnostic as to the direction the flexbox happens to be laid out in.  To make it easier to talk about flexbox layout in a general way, we will define several direction-agnostic terms here to make the rest of the spec easier to read and understand.</p>
 
@@ -173,14 +173,14 @@ <h2 id='display-flexbox'>
 <h2 id='flex-items'>
 Flexbox Items</h2>
 
-	<p>Flexbox layout algorithm operates on <i>flexbox items</i>, which are boxes that satisfy one of the following criteria:</p>
+	<p>The flexbox layout algorithm operates on boxes generated by <dfn title="flexbox item|flexbox items|flexbox item's" id="flexbox-item">flexbox items</dfn>, which are elements that satisfy one of the following criteria:</p>
 
 	<ol>
-		<li>Immediate block-level children of flexbox</li>
+		<li>Immediate block-level children of the flexbox element</li>
 
-		<li>Atomic inline-level children of flexbox</li>
+		<li>Atomic inline-level children of the flexbox element</li>
 
-		<li>Contiguous run of non-replaced inline children, wrapped into an anonymous block box.  If the contents of the anonymous box would be solely an anonymous inline containing only whitespace, the box is not generated, and the whitespace is removed from the box tree.</li>
+		<li>Contiguous run of non-replaced inline children, wrapped into an anonymous block element.  If the contents of the anonymous block would be solely an anonymous inline containing only whitespace, the box is not generated, and the whitespace is removed from the box tree.</li>
 	</ol>
 
 	<p>Some values of 'display' trigger "fixup" to ensure a sensible tree structure.  For example, a lone ''table-cell'' box is fixed up by generating ''table'' and ''table-row'' boxes around it.  This fixup must occur <em>before</em> a flexbox's contents are checked to see if it's necessary to generate anonymous flexbox items.</p>