The width of the blue, absolutely positioned, block should be that of it's containing block.
That is NOT the red block, but the root element! This is still buggy in Opera 7.1 Beta.
Not positioned, width:200px
position: absolute, width: 100%;
position: fixed, width: 100%;
Since my position is fixed, the viewport is my containing block!
So my width of 100% should be all across the screen...
This is fixed in Opera 7.1 Beta
Regression in build 3144 (7.2RC) :-(