border

Sets the outer border around a table to a given number of pixels. If set to zero, no border appears

frame

Specifies which part of the border will be seen (void, above, below, hsides, vsides, lhs, rhs, box, border)

rules

Specifies which rules will appear (none, groups, rows, cols, all)

<table frame="vsides" rules="rows" border="6" >

This is how it would look

These attributes are allowed in XHTML 1.0 but not in (X)HTML 5.0