title: Bootstrap 4 Flex Box Grid
body: <p>According to <a href="https://scotch.io/bar-talk/whats-new-in-bootstrap-4" rel="nofollow">this post</a>, Bootstrap 4 offers an opt-in flex box grid.</p>
  
  <blockquote>
    <p>There’s a boolean variable in the _variables.scss file called
    $enable-flex. If you set this to true and recompile, a ton of things
    happen.</p>
  </blockquote>
  
  <p>Q: How do you recompile Bootstrap? I typed:</p>
  
  <pre><code>git clone https://github.com/twbs/bootstrap
  </code></pre>
  
  <p>on the command line and my windows computer just hung. I finally had to Ctrl+C and exit.</p>