title: Invisible separator in JavaFX?
body: <p>Trying to add space between two <code>TextField</code> which appear below one another in a <code>GridPane</code>.</p>
  <p>I tried:</p>
  <pre><code>Separator separator1 = new Separator();
  separator1.setStyle(&quot;separator&quot;);
  separator1.setSkin(null);
  </code></pre>
  <p>with the CSS:</p>
  <pre><code>.separator{
   -fx-border-color: transparent;
   -fx-border-width: 0;
  }
  </code></pre>
  <p>but we still see a grey line on the length of the separator. How to remove it and make the separator completely invisible?</p>