Column Width

Hi,

I have used the the following and the columns are the same size.

.wp-table-reloaded-id-1 .column-1 {width:25%;}
.wp-table-reloaded-id-1 .column-2 {width:25%;}
.wp-table-reloaded-id-1 .column-3 {width:25%;}
.wp-table-reloaded-id-1 .column-4 {width:25%;}

But how do I keep the columns within the page?

My website is http://www.ministryofnature.com.sg/products/

Thanks!