B.20. bottom
This property lets you set the distance between the bottom edge of an absolute positioned element (including its padding, border, and margin)[2] and the bottom edge of the positioning context in which it resides. The positioning context is the content area of the element's nearest ancestor that has a position property value other than static, or the body element.
[2] The CSS2 specification contains an error that suggests that the padding, border, and margin of the positioned element should not be considered. This has been acknowledged as a mistake by the CSS Working Group in the Errata document for CSS2.
In Internet Explorer for Windows, Netscape 6, and Mozilla browsers, when the positioning context is the document body, the element ...
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