Column widths will not change

In the latest version of Firefox (looks fine in Chrome and IE), on http://www.cleanroomconnection.com/cleanroom-apparel/cleanroom-coveralls/ in the 2nd set of tabs on the “Clean & Sterile Coveralls” tab. The table columns are not proportioned correctly. I have tried several suggestions in the forum and even tried to change the widths in Firebug, but nothing happens. I corrected several other tables on the other tabs on that page that were doing the same thing…but this table will not budge using the same techniques. Here is my current custom CSS code:

#tablepress-id-30 {
	table-layout: fixed;
	width: 100%;
}

#tablepress-30 .column-1 {
	width: 20% !important;
}

#tablepress-30 .column-2 {
	width: 11% !important;
}

#tablepress-30 .column-3 {
	width: 11% !important;
}

#tablepress-30 .column-4 {
	width: 45% !important;
}

#tablepress-30 .column-5 {
	width: 13% !important;
}

https://wordpress.org/plugins/tablepress/