An HTML table with a header cell that spans two columns:
The colspan attribute is supported in all major browsers.
Note: Only Firefox supports colspan="0", which have a special meaning (look below in the "Attribute Values" table).
The colspan attribute defines the number of columns a header cell should span.
|number||Sets the number of columns a header cell should span. Note: colspan="0" tells the browser to span the cell to the last column of the column group (colgroup)|
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