title: New to SASS, SCSS with --webkit-scrollbar throws syntax error. Escape sequence?
body: <p>Hopeful to learn what one of these looks like in SCSS</p>
  
  <pre><code>div.navwrapper {
      position:relative;
      --webkit-scrollbar: 6px;
      background-color: transparent;      
  }
  </code></pre>
  
  <p>Thanks!</p>