anchor.diff:  [source,xml]
   ----
   
  -      <panel id="panel_left" width="80%" height="100%" childLayout="vertical"
  -      backgroundColor="#0f08">
  -        <!-- spacer -->
  -      </panel>
  -      <panel id="panel_right" width="20%" height="100%" childLayout="vertical"
  -      backgroundColor="#00f8" >
  -        <panel id="panel_top_right1" width="100%" height="15%" childLayout="center"
  -             backgroundColor="#00f8">
  -        </panel>
  -        <panel id="panel_top_right2" width="100%" height="15%" childLayout="center"
  -             backgroundColor="#44f8">
  -        </panel>
  -        <panel id="panel_bot_right" width="100%" height="70%" valign="center"
  -             backgroundColor="#88f8">
  -        </panel>
  -      </panel>
  +<panel id="panel_left" width="80%" height="100%" childLayout="vertical" backgroundColor="#0f08">
  +  <!-- spacer -->
  +</panel>
  +<panel id="panel_right" width="20%" height="100%" childLayout="vertical" backgroundColor="#00f8" >
  +  <panel id="panel_top_right1" width="100%" height="15%" childLayout="center" backgroundColor="#00f8">
  +  </panel>
  +  <panel id="panel_top_right2" width="100%" height="15%" childLayout="center" backgroundColor="#44f8">
  +  </panel>
  +  <panel id="panel_bot_right" width="100%" height="70%" valign="center" backgroundColor="#88f8">
  +  </panel>
  +</panel>
   
   ----
   
  
positive.code: 
  ==== Other Controls
  
  Nifty additionally offers many customizable controls such as check boxes, text fields, menus, chats, tabs, … See also link:http://sourceforge.net/apps/mediawiki/nifty-gui/index.php?title=Elements[Elements] on the Nifty +++<abbr title="Graphical User Interface">GUI</abbr>+++ site.
  
  
  == Intermediate Result
  
negative.code: [source,xml]
  ----
  
  <panel id="panel_top" height="25%" width="75%" align="center" childLayout="center" backgroundColor="#f008">
  </panel>
  <panel id="panel_mid" height="50%" width="75%" align="center" childLayout="center" backgroundColor="#0f08">
  </panel>
  <panel id="panel_bottom" height="25%" width="75%" align="center" childLayout="horizontal" backgroundColor="#00f8">
    <panel id="panel_bottom_left" height="50%" width="50%" valign="center" childLayout="center" backgroundColor="#44f8">
    </panel>
    <panel id="panel_bottom_right" height="50%" width="50%" valign="center" childLayout="center" backgroundColor="#88f8">
    </panel>
  </panel>
  
  ----
  
  