http://www.w3.org/TR/REC-html40/sgml/framesetdtd.html
Frameset이..Transitional 을 따라가는데..This is the HTML 4.01 Frameset DTD, which should be
used for documents with frames. This DTD is identical
to the HTML 4.01 Transitional DTD except for the
content model of the "HTML" element: in frameset
documents, the "FRAMESET" element replaces the "BODY"
element.
이걸 strict 으로 바꿔서 사용할 수 없나요..?
IFrame을 안쓰면 좋을텐데, 기존에 많은 페이지들이 써왔기때문에...