This section will probably include details on how to render DATAGRID (including its pseudo-elements), drag-and-drop, etc, in a visual medium, in concert with CSS. Terms that need to be defined include: sizing of embedded content
CSS UAs in visual media must, when scrolling a page to a fragment identifier, align the top of the viewport with the target element's top border edge.
must define letting the user "obtain a physical form (or a representation of a physical form)" of a document (printing) and what this means for the UA, in particular creating a new view for the print media.
Must define that in CSS, tag and attribute names in HTML documents, and class names in quirks mode documents, are case-insensitive, as well as saying which attribute values must be compared case-insensitively.
Need to define the content attributes of BODY in terms of CSS or something.
UAs should use the command's Icon as the default generic icon
provided by the user agent when the 'icon' property computes to
'auto' on an element that either defines a command or refers to one
using the command attribute,
but when the property computes to an actual image, it should use
that image instead.
