title: Website shows different font size even if it was set global
body: <p>I have two sites on which the font is set by</p>
  
  <pre><code>* {
      font-family: "Varela Round", sans-serif;
  }
  </code></pre>
  
  <p>Since the <code>font-size</code> is not specified, the browser use his standard values for each element. But if I set the size to <code>0.9em</code> the size is really small. The output of <code>window.getComputedStyle(element).fontSize</code> also shows different <code>px</code> values. If I set <code>font-size: 13px</code> the size is everywhere the same.</p>