title: Font Awesome 5 font-family issue
body: <p>I integrated Font Awesome 5 in a project with bootstrap 4. When I recall a font via CSS it does not work.
  with Font Awesome 4 the code was as follows:</p>
  
  <pre><code>#mainNav .navbar-collapse .navbar-sidenav .nav-link-collapse:after {
    float: right;
    content: "\f107";
    font-family: "FontAwesome";
  }
  </code></pre>
  
  <p>I tried to change the font name but it does not work</p>
  
  <pre><code>font-family: 'Font Awesome 5 Free'
  </code></pre>