[Marketing-Public]standards compliance of Mozilla?

oberon marketing-public at mozilla.org
Mon, 27 Oct 2003 13:03:34 +0100

Le 27/10/2003 11:28, James Graham a écrit :
> oberon wrote:
>> Le 25/10/2003 11:11, Patrick Lee a écrit :
>>> Standards compliance (and IE's lack thereof) is mentioned quite a bit
>>> around here, but where exactly are the Mozilla browsers in this regard?
>>>  For example, are they fully CSS2 compliant?
>> There is no browser with full CSS2.1 compliance, but Mozilla probably 
>> offers the best CSS2 support (and despite what many thinks, Opera does 
>> NOT have the best CSS support ;-) )
> Which browser has the "best" CSS 2.1 support is a very difficult thing 
> to measure. For example I believe Mozilla is the only current-generation 
> browser that has no support for display:inline-block.  Opera has support 
> for counters (which allow you to do things like number every heading on 
> a page), whilst Mozilla has none. Safari supports text-shadow, whilst 
> Mozilla does not. There are lots of other examples of missing or buggy 
> support for CSS 2 features in Mozilla. There are tables on the web that 
> simply count the number of properties that browsers support. In general 
> this metric gives Opera a slight lead over Mozilla. But such a simple 
> test does not allow for depth of support i.e. whether a particular 
> feature works with an arbitary combination of other features. 
> Apparentley Mozilla has good depth of support for features - but this is 
> much harder to measure. My point is not that Mozilla has particularly 
> bad support for CSS - it doesn't. The point is that comparisons in this 
> area are very difficult.
>  From the point of view of the web at large, Mozilla's CSS support is 
> excellent - it is certianly not the limiting browser for CSS based 
> designs (that would be IE 5).

My personal experience is that both Opera and mozilla have an excellent 
CSS support but I often meet CSS bugs in Opera for complex layouts that 
I don't meet in Mozilla, particulary with CSS2 selectors and pseudo 
selectors which I use far more often than css counters ;-)


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