Hi, I just realized that in HTML4.01 spec, DTD doesn't seem to allow nested OL or UL without LI. See http://www.w3.org/TR/REC-html40/struct/lists.html#h-10.2 In fact, the nested list example is marked deprecated. But in practice, all major user agents produce nested list when execCommand("Indent"...) is executed. Is there any chance we can standardize nested lists, and in particular, what UA produce?
For example, all major browsers (Firefox, IE, & WebKit) produce slightly different versions of HTML when indenting "item 2" in the following HTML (assume it's content-editable): <ol> <ol id="u1"><li id="i1">item 1</li></ol> <li id="i2">item 2</li> <ol id="u3"><li id="i3">item 3</li></ol> </ol> In particular, many UA remove arbitrary id attributes. Best regards, Ryosuke Niwa rn...@google.com