title: document.execCommand() FontSize in pixels?
body: <p>How can I change font size to 30px (for example) using <code>document.execCommand</code>?</p>
  
  <p>This:</p>
  
  <pre><code>document.execCommand("fontSize", false, "30px");
  </code></pre>
  
  <p>doesn't work, because in 3rd argument of the function execCommand, it only allows me to input a value between and including 1 to 7.</p>