Skills Widget - Column width

I cannot figure out how to control the width of columns for the Skills widget. The left column is too narrow and forcing words to break into the next line.

<div class="skills-list col-md-6 col-sm-6">
<div class="col-md-2 wow fadeIn">Interviewing:</div>
<div class="skill-bar col-md-10" id="15"><div></div></div><div class="col-md-2 wow fadeIn">Research:</div>
<div class="skill-bar col-md-10" id="15"><div></div></div><div class="col-md-2 wow fadeIn">Writing:</div>
<div class="skill-bar col-md-10" id="35"><div></div></div><div class="col-md-2 wow fadeIn">Photos:</div><div class="skill-bar col-md-10" id="10"><div></div></div><div class="col-md-2 wow fadeIn">Layout & editing:</div><div class="skill-bar col-md-10" id="25"><div></div></div>

There are two boxes in the Wordpress Admin for Moesia FP: Skills, Attributes: Widget Class and CSS Styles. What should go here (ie: the class ID, only the CSS text, etc.)?