[css2] Added that CSS 2.1 allows the list marker to be hidden if 'overflow'

is not 'visible', but that that is expected to be changed in the
future. (Telcon resolution of 2010-11-24.)

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%403081

Author: bert-github

css2/generate.src

@@ -905,9 +905,16 @@ order<!--/191-->, but does
 require that for list items whose 'direction' property is 'ltr' the
 marker box be on the left side of the content and for elements whose
 'direction' property is 'rtl' the marker box be on the right side of
-the content. 'overflow' on the element does not clip the marker box. 
+the content.
+
 The marker box is fixed with respect to the principal block box's
 border and does not scroll with the principal block box's content.
+
+<!--telcon 2010-11-24-->In CSS&nbsp;2.1, a UA may hide the marker if
+the element's <span class=propinst-overflow>'overflow'</span> is other
+than 'visible'. (This is expected to change in the future.)<!--/telcon
+2010-11-24-->
+
 The size or contents of the marker box may affect the height of the
 principal block box and/or the height of its first line box, and in
 some cases may cause the creation of a new line box. <span