cellpadding Attributecellpadding AttributeThe cellpadding attribute specifies the padding within each table cell,
between the cell's border and its contents.
The cellpadding attribute is not present in the
*W3C XHTML 1.1 Basic Tables Module.
An integer is treated as a pixel value and each of the
top, bottom, left and right paddings should be this number of pixels. In theory, it is possible to specify
instead a percentage value for this attribute, but since both of the browsers I tested merely treated
this percentage as if it were a pixel value - i.e. "10%" is equivalent to "10", it seems safer to stick to
pixel values (or, better, CSS and the padding property).
See also the cellspacing attribute.