title: Increasing the height of root panel in gwt
body: <p>I have a html panel and i want to add the html panel to browser screen hence i used <code>rootPanel.get().add(htmlPanel);</code>. But their is a extra space between the starting of the screen and the first widget in html panel (As in image). I tried with setting <code>rootPanel.get().setheight("100%") and rootPanel.get().setsize("100%","100%")</code> but it doesn't seem to work please help i want to remove the extra space and so that the widget starts from beginning.</p>
  
  <p><img src="https://i.stack.imgur.com/MY3aV.png" alt="enter image description here"></p>