[1] [CITE@en[Web Applications 1.0 r6640  Define the concept of 'palpable content' so that we can better define the 'should'-level requirement equivalent to HTML4's 'paragraphs must not be empty'. This might be overkill. On the other hand, this might be useful in the future in defining other requirements.]]
( ([TIME[2011-10-06 07:49:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=6639&to=6640>

[2] [CITE@en[Web Applications 1.0 r1114  Begone, significant inline content!]]
( ([TIME[2007-10-31 18:08:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=1113&to=1114>

[3] [CITE@en[Web Applications 1.0 r1152        Massive overhaul of the content models of most elements. The Block vs Inline distinction has been replaced by a new set of content categories, block/inline mixing is now allowed, the definition of paragraphs is revamped, and many related issues have been addressed.]]
( ([TIME[2007-12-20 12:47:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=1151&to=1152>