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→Specification Conformance
== Specification Conformance ==
[http://www.w3.org/TR/REC-CSS1#margin CSS1]<br />
[http://www.w3.org/TR/REC-CSS2/box.html#margin-properties CSS2]<br />
[http://www.w3.org/TR/CSS21/box.html#propdef-margin CSS3]