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Posted by Jonathan N. Little on 09/29/05 17:42
talthen.z-serwera.o2@nospam.pl wrote:
> "Marc" <mbradshaw@beasolutions.com>
>
>>Where is the logic in your argument?
>
>
>>'you can write "width: 3%"' - no space between 3 and %
>>'"width: 3%"' - no space between 3 and %
>>'"width: 3px"' - no space between 3 and px
>>'and you cannot "width: 3 px"' - space between 3 and px - doesn't work.
>
>
> I mean- the number of spaces differ between : and 3, I also can write
> "width:3" and it will work.
> So where's the logic- sometimes spaces are ingored, sometimes not?
>
> And why in this:
>
> <hr width="80 %">
> <hr style="position: absolute; width: 80 %">
> The first line's width is 80 %, and the second is just few pixels?
>
> Regards,
> Talthen
>
>
Because as I wrote elsewhere inthis thread:
Remember this is a property value, not a description, the property like
the values are one word entities: it's 'background-color' not
'background color', right? This is a 'script' to be evaluated by a
program, your browser, not a human.
I gather regular expressions are used to parse the properties and values.
':' separates the property for the value or values
'whitespace' separates the property values
';' separates the properties and values pairs
If you put a whitespace between the value’s value and the value’s units
specifier the parser would be confused as two as separate property values
read the spec:
http://www.w3.org/TR/CSS21/syndata.html
To understand this you have to think like software not as a human.
Humans can usually makes sense out of with ambiguous, incomplete or
erroneous data, computers do not. When a program tries to out-guess the
data, well MS keeps trying ;-) Try entering a list of names in a Excel
SS column in this order "Mary Jane", "Mary Jo", "Mary"...
--
Take care,
Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com
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