# HG changeset patch
# Parent 37916d40e663728b0b477ded0444a34acdfd23f7
Add cycle() notation per <http://lists.w3.org/Archives/Public/www-style/2009Jan/0104.html>.

diff --git a/Overview.src.html b/Overview.src.html
--- a/Overview.src.html
+++ b/Overview.src.html
@@ -942,7 +942,47 @@ width: 0px;
   table cells in both auto and fixed layout tables may be treated as if
   'auto' had been specified.
 
+<h3 id="cycle">
+Cycling Values: ''cycle()''</h3>
 
+	<p>The <dfn>''cycle()''</dfn> expression allows descendant elements
+	to cycle over a list of values instead of inheriting the same value.
+	The syntax of the ''cycle()'' expression is:
+
+	<pre>cycle( &lt;value&gt;# )</pre>
+
+	<p>where <code>&lt;value&lt;</code> is a CSS value that is valid where
+	the expression is placed.  If any of the values inside are not valid,
+	then the entire ''cycle()'' expression is invalid.
+
+	<p>The value returned by ''cycle()'' must be determined by comparing
+	the inherited value <var>I</var> (the computed value on the parent,
+	or, for the root, the initial value) to the computed values
+	<var>C<sub>n</sub></var> returned by the <var>n</var>-th argument to
+	''cycle()''.
+	For the earliest <var>C<sub>n</sub></var> such that
+	<var>C<sub>n</sub></var> == <var>I</var>, the value returned by cycle
+	is <var>C<sub>n+1</sub></var>.  However, if this <var>C<sub>n</sub></var>
+	is the last value, or if there are no <var>C<sub>n</sub></var> that
+	equal <var>I</var>, the computed value of the first value is returned
+	instead.
+
+	<pre class="example">
+  /* make em elements italic, but make them normal if they're inside
+     something that's italic */
+  em { font-style: cycle(italic, normal); }</pre>
+
+	<pre class="example">
+  /* cycle between markers for nested lists, so that the top level has
+     disk markers, but nested lists use circle, square, box, and then
+     (for the 5th list deep) repeat */
+  ul { list-style-type: disk; }
+  li > ul { list-style-type: cycle(disk, circle, square, box); }</pre>
+
+	<p>The ''cycle()'' notation is not allowed to be nested; nor may it
+	contain ''attr()'', ''calc()'', ''min()'', or ''max()'' notations.
+	Declarations containing such constructs are invalid and must be
+	<a href="http://www.w3.org/TR/CSS21/conform.html#ignore">ignored</a>.
 
 <h3 id="attr">
 Attribute References: ''attr()''</h3>