This is really weird, I have several style sheets from high end websites that have padding set like this for example:

padding: 0 40 10 20;

However when I write mine like this in dreamweaver it does not work, it sets no padding at all, until I add the "px" after like this:

padding: 0px 40px 10px 20px;

I am curious why this works without the "px" for other people but not me?

It shouldn't. You need to indicate the unit of measure.

I believe it works when the browsers are in quirks mode.
Once they switch in standard compliant mode, those values are ignored.

As far as i know you have always been able to safely use 0 without a unit, because there is nothing, thats what the zero means, so... well... nothing hasn't got a unit of measurement.

Correct, zero doesn't need a unit, but anything else does.

I just read my post again and wanna make clear im not being sarcastic or nasty, just typing as i think i gotta stop that...

Some browsers might work like that, but if you're working in dreamweaver and you click preview, it won't show the padding unless you make it W3C compliant.

Not using units isnt not w3c compliant. If i can make that clear enough.

In other words -width: 0; is still being w3c compliant

Originally Posted by beta

Not using units isnt not w3c compliant. If i can make that clear enough.

In other words -width: 0; is still being w3c compliant

Oh, sorry if I wasn't clear in my post...that's what I was saying...