The width of the first table data cell is set to 25% which then sets the width of all the cells in Column 1 at 25% or 125 pixels (25% of 500 = 125). The width of all the cells in Column 2 default to the remainder of table's width (75%): Example 1 - SOURCE CODE <table width="500" border="5">As we know the table's cellpadding and cellspacing attributes are removed in HTML5. But, you can still set padding inside the table cells easily using the CSS padding property. This is a valid way to produce the same effect as table's cellpadding attribute. The style rules in the following example will add 10 pixels of padding to the table cells.