title: make select2 multi-select not wrap to multiple lines
body: <p>Is there a way to make a multi-select not wrap when selecting enough values to do so? As an example, here's what it does:</p>
  
  <p><img src="https://i.stack.imgur.com/IC136.png" alt="enter image description here"></p>
  
  <p>What I want is for it to all be contained in one line and be accessible horizontally only. Select2 provides arrow key navigation as well as delete key usage so that isn't a big deal. </p>
  
  <p>I figure this can probably be done with CSS but I'm struggling to figure out what needs to be done.</p>