Question

Is that used for do tricky thing in opera, I know that opera browser has a limitation that element cannot be wider than 32767px.

Is this number a standard? (I don’t think so)

What about other browsers? like chrome firefox IE, do they have the same kind of limitation?

Thanks,

Answer 1

Some people will immediatly notice the 32,767 as the programatic max
value for an ‘Integer’, which is exactly what the problem is. Opera
for some reason, and it is completly alone here, as all other browsers
even the dreaded Internet Explorer 6, can handle CSS values that
exceed this limit. Opera will silently fail, throw no warning about it
and ignore all styles that follow non integer numbers in your
selector.

There was no way around this I could find to make it work in Opera,
simply put.

Any number bigger then 32,767 for a value in CSS when displaying with
Opera 10, will be ignored and cause all following styles in that
selector to be dropped.

http://www.aplusdesign.com.au/blog/opera-css-integer-bug/

So, in short, no, it shouldn’t affect other browsers. It is “standard” as in it relates to integer max value. It is the highest number that can be represented in a signed 16-bit integer (to be exact, the range is 2^15-1 to -2^15 or 32767 to -32768).

Edit: however, there have been few bugs in other browsers too related to the same max value, such as iframe size limit bug in Firefox, so things related to the same number might pop up in some other context with other browsers too. But CSS value bug should be Opera-only.

Edit2: webinista pointed out in the comments that the Opera behaviour should be fixed from version 11.60 onwards and this magical number should not be needed after that.