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the CSS2 specification contains examples both with and without commas and defines rect as accepting both the comma and noncomma versions. This text will stick to the comma version mostly because it makes things easier to read.

It is extremely important to note that the values for rect(...) are not side-offsets. They are, instead, distances from the upper-left corner of the element. Thus, a clipping rectangle which encloses a square 20 pixels by 20 pixels in the upper-left corner of

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Applies to

all elements

The default value of font-style is, as we can see,padding of the element box. It will come as no surprise that the simplest property used to affect this area is called padding.

padding

Values

[ <length> | <percentage> ]{1,4}

However, you should consider this: if you're concerned aboutolder user agents that don't know about CSS2, then*.class (or *#id) is an easyway to fool them. Since both of these are examples of invalidselectors in CSS1, they should be ignored by CSS1-only parsers. Ifthey aren't ignored, then they're likely to cause strangeresults. Therefore, it might be a good idea to omit the universalselector in conjunction with class and ID selectors.