[xep-support] XEP 3.2: error in handling value "auto" for margin-left and margin-right

David Tolpin dvd at renderx.com
Sun Feb 2 12:20:20 PST 2003

> Hi,
> I think the example below reveals an error in the handling of margin-left and
> margin-right. According to section 10.3.3 of the CSS2 specification the "auto"
> values should be treated as "0", because the width is also set to "auto" (didn't
> have to be defined explicitly). Both blocks should therefore be treated equally,
> but they aren't. It seems to me that for the first block, space-start and space-end
> semantics were applied.

margin="auto" means margin:=indent-border-padding
indent is 0 by default
thus for border="5mm" margin=-5mm

This issue had been discussed earlier on the list, please take a look at


and other messages in that thread.


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