[whatwg] Stability of tokenizing/dom algorithms

[Martin Atkins]

Edward Z. Yang wrote:
> Ian Hickson wrote:
>> I'm not saying don't be standards-compliant; I'm just saying use a subset 
>> of HTML5 that you feel comfortable with (which might also be a subset of 
>> HTML4, for that matter, just with the HTML5 DOCTYPE so that you don't have 
>> to worry about exactly which version you want to follow).
> 
> Sounds good, since HTML4 is a strict subset of HTML5 (correct me if I'm
> wrong?)
> 

It's probably more accurate to say that what browsers understand of 
HTML4 is roughly a subset of HTML5. Arguably no browser actually 
implements HTML4. :)