[css-d] Block element width

Hi, When I define a block element that exceeds the window width, IE and FF seem to interpret its width differently. See for example http://www50.brinkster.com/splintor/widthtest.html, where I define object with long lines, and sets it background color and border. It seems the Firefox thinks

[css-d] Highlighting text

I'm trying to add highlighting features to a pre tag. I want it to look like GMail higlight and spell-checking feature, but I don't want to break the pre tag text into small span tags. Instead, I want to position a span with a background color over a specific text, so the text will look highlight