w3c icon + 2.0 3.0 3.2 4.0
Netscape icon 1.0 2.0 3.0b5 4.0  
MSIE icon 1.0 2.0 3.0 4.0  
Mosaic icon 1.0 2.0      
Opera 1.0 2.1 3.0    
WebTV 0.9 1.2      

<noscript>

container
start tagrequired
end tagrequired
Sandia Reference
Link to Site Map

"If a user's browser application does not support JavaScript, the user sees the HTML between the <noscript> tag and its end tag." (Netscape 3.0b5)

MSIE 3.0 DTD lists the four basic attributes for this tag. The are: "class=", "id=", "lang=" and "style=". The only conclusion is that they were added in error.