b4a4e1cb_L_Basics__Table_tag_attributes__Purpose_
[Attribute:] width height [Applies to:] table td [Purpose:] 
table: a number of pixels or a percentage of the window size. Height is rarely set on purpose. WYSIWYG programs may set height automatically. td: a number of pixels or a percentage of the table size for width and of window size for height.
Jan's HTML Basics: Table tag attributes
Purpose: