Modify size guide table columns width

For regular table to change the width of row I can apply something like
<th style="width: 20%;">Size</th>

But for this element I can’t access the table code.

It turns out it’s easier to figure this out by myself.
Here’s the CSS in case somebody will be searching for a solution.

.wd-sizeguide-table td:nth-child(3) {
	width: 25%;
}

Where number in brackets is the number of column. If you have several sizeguides add particular one’s class.
If nothing changes adjust padding as follows:

.wd-sizeguide-table td {
	padding: 15px 5px;
}