4 ms·
Those have been optional in every HTML DTD since 2.0 (the earliest I saw). It bugs me when everyone calls markup like this "invalid" when they actually mean it
by prodigal_erik 16y ago
Those have been optional in every HTML DTD since 2.0 (the earliest I saw). It bugs me when everyone calls markup like this "invalid" when they actually mean it was browser authors who failed to follow the specs (in this case, SGML content model rules).