Firefox and Opera preserve the space of the column. The table column should not be rendered, subsequent columns should move over to fill the space as though the column is not there.

Test page Workaround is not included
Reported by: Marc Pacheco.

When the colgroup element does not have any child col elements and the span attribute is not set Safari defaults the value to 0.

Test page Workaround is not included
Reported by: Marc Pacheco.

imagine you want a fixed layer at the top of your page and all which follows to scroll UNDER that layer.
Apparently explorer 7 is unable to calculate a top margin for a 'position:relative' div which follows a 'position:fixed' one with higher z-index. The second layer will just stick to the top of the page no matter which marin-top you define for it.

Test page Workaround is not included
Reported by: feragnoli.

Safari and Opera leave a space where the row would have been. When visibility: collapse is set on a tr. The table row should not be rendered, subsequent rows should move up to fill the space as though the row is not there.

Test page Workaround is not included
Reported by: Marc Pacheco.

I first noticed the problem when I tried to use a PNG+alpha background in an element that contains an hyperlink (see test page). The hyperlink would not work in certain area, which I later identified as non transparent areas of the background image.

It seems as if the filter "steals" mouse events in non transparent areas, regardless of its z-order (no click, no cursor shape change).

Workaround: add the filter to an element with position: static, and there must be a position: relative child element.

Test page Workaround is not included
Reported by: Herve Masson.

Safari incorrectly places a border below the tfoot element. This is fixed in the current nightlies of web kit.

Test page Workaround is not included
Reported by: Marc Pacheco.

The getAttribute() method will return "null" in Internet Explorer when trying to get the for attribute of a label element.

Solution: use attributes['for'].nodeValue.

Test page Workaround is included
Reported by: Laurent Muchacho.

Opera incorrectly places borders separating the thead and tbody sections.

Safari incorrectly places borders separating the thead and tbody sections it also draws a border around every column contained in the colgroup not just the colgroup.

(ppknote: Explorer doesn't do anything)

Test page Workaround is not included
Reported by: Marc Pacheco.

If you define a function as a member of the window object in IE7, the keyword this obviously refers to the wrong object:

window.myFunction = function() {
   return (this === window);
}

A call to myfunction() in IE7 would incorrecty yield false. This problem also affects exception handling. Predefined event-handlers like onload are not affected.

Test page Workaround is included
Reported by: Arnold Konrad.

When a floating element has an opacity of less than one and when hovered it has an opacity of one, Safari (all webkit browsers except the latest Webkit builds) freaks out. The only solution so far seems to be to set the hover opacity to .99

Test page Workaround is included
Reported by: Vasilis.