Absolute Positioning
The precise placement of design elements on a a Web page.
This is done by the use of X and Y coordinates designated in pixels, a feature available with Cascading Style Sheets.
Absolute positioning can be designated as "fixed" (though images may shift on different browsers or at different resolutions) or "relative" (adjusts to different browsers or at different resolutions to maintain the same relative position).
Unfortunately, older browsers can have problems with either type of positioning.