3 ms·

Nitpick: the HTML4 spec was released in December 1997, and HTML4.01 only in December 1999 so it probably wouldn't have run in 1996s Netscape.

• cobbaut 1y ago
  Back then it was common for Netscape to have features that (years) later became standard HTML.
• JimDabell 1y ago
  The doctype doesn’t matter in this context. Netscape Navigator 2 supported frames in 1995 and would render that page.