title: Apply CSS to a group of css classes containing col- substring
body: <p>I wasn't sure of the best way to word this and that's probably why I have struggled to research it even though it is probably simple.</p>
  
  <p>What I want to do is a apply CSS to a group of classes.</p>
  
  <p>For example I have the classes  <code>.col-1</code>,  <code>.col-2</code>,  <code>.col-3</code>,  <code>.col-4</code></p>
  
  <p>What I want to be able to do is make some css that can say maybe change the border color for all classes with the text <code>col-</code> so I don't have to apply it to each individual number.</p>
  
  <p>I'm sure I've seen this before but cannot think how to do it.</p>