Check out: http://tomabuct.googlepages.com/CSS20.htm
The spec states under 10.3.7 - Absolutely positioned, non-replaced elements: >'left' + 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' + 'right' = width of containing block and it states under 10.1 Definition of "containing block": >If the element has 'position: absolute', the containing block is established by the nearest ancestor >with a 'position' of 'absolute', 'relative' or 'fixed', in the following way: > >..... > >Otherwise, the containing block is formed by the padding edge of the ancestor. >If there is no such ancestor, the containing block is the initial containing block. In the case of IE7B2: 17px + 0 + 0 + 0 + x + 0 + 0 + 0 + 17px = 30em and thus x = width of divs = 30em - 34px. The 30em is the content width of the containing block and does NOT include padding and the the resulting width of the divs cause the anomaly seen in IE7B2. This conflicts with the spec because "the containing block is formed by the padding edge of the ancestor" and NOT the content edge. In the case of FF1.5 and Opera9P2: 17px + 0 + 0 + 0 + x + 0 + 0 + 0 + 17px = 30em + 2em and thus x = 30em + 2em - 34px. The 30em + 2em is the content width of the containing block along with the padding on both sides thus the containing block formed follows the spec and IS the padding edge of the ancestor. Or I have I overlooked (or misunderstood) a part of the spec? -- Tom http://the.kid.who.hacked.in/ ______________________________________________________________________ css-discuss [EMAIL PROTECTED] http://www.css-discuss.org/mailman/listinfo/css-d IE7b2 testing hub -- http://css-discuss.incutio.com/?page=IE7 List wiki/FAQ -- http://css-discuss.incutio.com/ Supported by evolt.org -- http://www.evolt.org/help_support_evolt/
