[css2] Reverted change to containing block definition and added that

bert-github · bert-github · commit d5d761fbc3ba · 2002-07-25T20:29:46.000Z
percentage height on root may refer to viewport.

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%401899
diff --git a/css2/visudet.src b/css2/visudet.src
@@ -1,6 +1,6 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html lang="en">
-<!-- $Id: visudet.src,v 2.53 2002-07-25 19:07:37 bbos Exp $ -->
+<!-- $Id: visudet.src,v 2.54 2002-07-25 20:29:46 bbos Exp $ -->
 <HEAD>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <TITLE>Visual formatting model details</TITLE>
@@ -21,10 +21,7 @@ is defined as follows:</p>
 <ol>
 <li>The containing block
 in which the <a href="conform.html#root">root
-element</a> lives is chosen by the user agent. It is suggested that
-UAs use a rectangle with the width and height of the viewport
-excluding scrolling mechanisms, anchored at the origin of the infinite
-canvas.
+element</a> lives is chosen by the user agent.
 
 <li>For other elements, if the element's position is 'relative' or 'static',
 the containing block is formed by the content edge of the nearest
@@ -61,10 +58,8 @@ are the bottom and left content edges of the last box of the ancestor.
 </ol>
 </ol>
 
-<p>If there is no such ancestor, the contianing block is UA dependent,
-but it is suggested that UAs use a rectangle with the width and height
-of the viewport excluding scrolling mechanisms, anchored at the origin
-of the infinite canvas.
+<p>If there is no such ancestor, the content edge of the root element's
+box establishes the containing block.
 </ol>
 
 <div class="example">
@@ -559,6 +554,10 @@ value is interpreted like 'auto'.
 See the prose below.
 </dl>
 
+<p>A UA may compute a percentage height on the <a
+href="conform.html#root">root element</a> relative to the <a
+href="visuren.html#viewport">viewport</a>.
+
 <P>Negative values for <span class="propinst-height">'height'</span>
 are illegal.
 
