[css2] Added that unitless 0 is allowed for frequencies and times.

bert-github · bert-github · commit e576e29aa582 · 2002-07-29T09:55:29.000Z
--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401902
diff --git a/css2/aural.src b/css2/aural.src
@@ -2,7 +2,7 @@
   'http://www.w3.org/TR/html4/strict.dtd'>
 
 <html lang="en">
-<!-- $Id: aural.src,v 2.35 2002-07-08 14:57:50 bbos Exp $ -->
+<!-- $Id: aural.src,v 2.36 2002-07-29 09:55:29 bbos Exp $ -->
 <HEAD>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <TITLE>Aural style sheets</TITLE>
@@ -107,6 +107,9 @@ followed by a time unit identifier.
 
 <p>Time values may not be negative.
 
+<p>Like for &lt;length&gt;, the unit may be omitted, if the value is
+zero: '0s' may be written as '0'.
+
 <H3>Frequencies</H3>
 
 <P>Frequency values are denoted by <span class="index-def"
@@ -129,6 +132,8 @@ followed by a frequency unit identifier.
 <P> For example, 200Hz (or 200hz) is a bass sound, and 6kHz (or 6khz)
 is a treble sound.
 
+<p>Like for &lt;length&gt;, the unit may be omitted, if the value is
+zero: '0Hz' may be written as '0'.
 
 <H2><a name="volume-props">Volume properties</a>: <span
 class="propinst-volume">'volume'</span></H2>
