title: inline css in Drupal 8
body: <p>In order to make Google Page Speed score in green and our search ranking happy. We will need to have the above-the-fold css included in the head of our page template. 
  This was possible in Drupal 7 where I got sites running nicely. </p>
  
  <p>But things are changing in Drupal 8 for the better. What I basically want to do is this (I know it doesn't work).</p>
  
  <p>In html.html.twig I want to insert this code into the </p>
  
  <pre><code>&lt;style media="all"&gt;
    {% include '@mytheme/style/inline.css' %}
  &lt;/style&gt;
  </code></pre>
  
  <p>And then I expect it to look something like this in the front end.</p>
  
  <pre><code>&lt;style media="all"&gt;
    html{background:#fff;color:#000;}body{margin:0;}...
  &lt;/style&gt;
  </code></pre>
  
  <p>Anyone have a solution for me? I do consider making Grunt output a inline.css.html.twig template instead of the inline.css but I fear that it might get ruined when being run though the twig engine!?</p>
  
  <p>Thanks
  Jonas</p>