title: Rails 5.1 + Webpack.... images in CSS?
body: <p>I'm trying to figure out how to use the <code>--webpack</code> method for a very simple Rails 5.1 app.</p>
  
  <p>I'm trying to use it for managing both JS as well as CSS (<code>scss</code>, specifically).</p>
  
  <p>This is so insanely frustrating though because there's no docs I can find anywhere how to do even the most basic stuff.</p>
  
  <p>How do I link an image from within my css file?</p>
  
  <p>Like this: <code>background-image: asset-url('header.jpg')</code></p>