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EMPTY-CELLS

There are often cases when a one or more table cells may contain no content whatsoever, but are still needed so that the table display remains intact (i.e., that the number of cells in a row or column equals the number assigned to the table as the whole). In a regular table, cells that contain no content appear "empty" and the border for the table (assuming one exists) seems to fill in and overlay the empty cell. Some Web authors have gotten around this by inserting a non-breaking space (" ") into the otherwise empty cell, so that it would display an actual cell containing no visible content. You can see the effects of both of these examples in the following illustration.

Figure 25-3. The "empty-cell" effect illustrated.



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