[css2] Issue 143 from http://wiki.csswg.org/spec/css2.1

bert-github · bert-github · commit bc7236dd7af0 · 2010-09-29T15:53:39.000Z
--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%403033
diff --git a/css2/selector.src b/css2/selector.src
@@ -1,6 +1,6 @@
 <!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01//EN'>
 <html lang="en">
-<!-- $Id: selector.src,v 2.117 2010-08-25 23:13:02 bbos Exp $ -->
+<!-- $Id: selector.src,v 2.118 2010-09-29 15:53:39 bbos Exp $ -->
 <head>
 <title>Selectors</title>
 </head>
@@ -441,13 +441,15 @@ title="DTD">DTD</span> or elsewhere, but cannot always be selected by
 attribute selectors. Style sheets should be designed so that they work
 even if the default values are not included in the document tree.
 
-<p>More precisely, a UA is <em>not</em> required to read an "external
+<p>More precisely, a UA may, but is <em>not</em> required to, read an "external
 subset" of the DTD but <em>is</em> required to look for default
 attribute values in the document's "internal subset." (See [[XML10]]
 for definitions of these subsets.)
+Depending on the UA, a default attribute value defined in the external
+subset of the DTD might or might not appear in the document tree.
 
-<p>A UA that recognizes an XML namespace [[-XMLNAMESPACES]] is not
-required to use its knowledge of that namespace to treat default
+<p>A UA that recognizes an XML namespace [[-XMLNAMESPACES]] may, but is not
+required to, use its knowledge of that namespace to treat default
 attribute values as if they were present in the document. (E.g., an
 XHTML UA is not required to use its built-in knowledge of the XHTML
 DTD.)
@@ -471,7 +473,7 @@ EXAMPLE[notation=decimal] { /*... default property settings ...*/ }
 EXAMPLE[notation=octal]   { /*... other settings...*/ }
 </pre>
 
-<p>the first rule will not match elements whose "notation" attribute
+<p>the first rule might not match elements whose "notation" attribute
 is set by default, i.e., not set explicitly. To catch all cases, the
 attribute selector for the default value must be dropped:</p>
 
