[] (0) Remove <layer>, make <td>/<th> margins collapse too.

git-svn-id: http://svn.whatwg.org/webapps@2781 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

 
 address, article, aside, blockquote, body, center, dd, dialog, dir,
 div, dl, dt, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hr,
-html, layer, legend, listing, menu, nav, ol, p, plaintext, pre, rp,
-section, ul, xmp { display: block; }
+html, legend, listing, menu, nav, ol, p, plaintext, pre, rp, section,
+ul, xmp { display: block; }
 
 table { display: table; }
 caption { display: table-caption; }
 
   <p>When a <code>Document</code> is in <a href=#quirks-mode>quirks mode</a>,
   margins on <a href=#html-elements>HTML elements</a> that collapse with the top or
-  bottom of the initial containing block are expected to be collapsed
-  to zero.</p>
+  bottom of the initial containing block, or the top of bottom of
+  <code><a href=#the-td-element>td</a></code> or <code><a href=#the-th-element>th</a></code> elements, are expected to be
+  collapsed to zero.</p>
 
 
   <h4 id=alignment><span class=secno>10.2.4 </span>Alignment</h4>

source

 
 address, article, aside, blockquote, body, center, dd, dialog, dir,
 div, dl, dt, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hr,
-html, layer, legend, listing, menu, nav, ol, p, plaintext, pre, rp,
-section, ul, xmp { display: block; }
+html, legend, listing, menu, nav, ol, p, plaintext, pre, rp, section,
+ul, xmp { display: block; }
 
 table { display: table; }
 caption { display: table-caption; }
 
   <p>When a <code>Document</code> is in <span>quirks mode</span>,
   margins on <span>HTML elements</span> that collapse with the top or
-  bottom of the initial containing block are expected to be collapsed
-  to zero.</p>
+  bottom of the initial containing block, or the top of bottom of
+  <code>td</code> or <code>th</code> elements, are expected to be
+  collapsed to zero.</p>
 
 
   <h4>Alignment</h4>