Address minor editorial comments for universal selector <http://lists.w3.org/Archives/Public/www-style/2009Oct/0214.html>

Author: fantasai

selectors3/Overview.html

@@ -828,15 +828,15 @@ <h3><a name=universal-selector>6.2. Universal selector</a> </h3>
 
 <p>The <dfn>universal selector</dfn>, written as a
 <a href="http://www.w3.org/TR/css3-namespace/#css-qnames">CSS qualified
-name</a> <a href="#refsCSSNS">[CSSNS]</a> with an an asterisk (<code>*</code>
+name</a> <a href="#refsCSSNS">[CSSNS]</a> with an asterisk (<code>*</code>
 U+002A) as the local name, represents the qualified name of any element
 type. It represents any single element in the document tree in any
 namespace (including those without a namespace) if no default
 namespace has been specified for selectors. If a default namespace has
 been specified, see <a href="#univnmsp">Universal selector and
 Namespaces</a> below.</p>
 
-<p>If a universal selector represented by <code>*</code> (without a
+<p>If a universal selector represented by <code>*</code> (i.e. without a
 namespace prefix) is not the only component of a sequence of simple
 selectors or is immediately followed by a pseudo-element, then the
 <code>*</code> may be omitted and the universal selector's presence