Often you may want to have your table resize dynamically with the page. Typically this is done by assigning width:100% in your CSS, but this presents a problem for Javascript since it can be very hard to get that relative size, rather than the absolute pixels. As such, if you apply the width attribute to the HTML table tag, this will be used as the width for the table (overruling any CSS styles).

This example shows a table width width="100%" and the container is also flexible width, so as the window is resized, the table will also resize dynamically.