How to hover over an HTML table cell and have it pop up an image (larger than the cell) using only CSS ? I know there must be a way to do this. Basically I have an empty table cell (though I can put text or a blank image or something in it), and when the user hovers over it, I want an image to pop up over the cell (and nearby cells if it's larger than the cell size). So the top left of the image will appear to be in the top left of the table cell and the overflow will cover cells to the right and below as appropriate.