<?xml version="1.0" encoding="UTF-8" ?>
<Page>
  <DockLayout stretchLastChild="true">
    <Button dock="left" text="left" style="background-color: red; margin: 5;"/>/>
    <Button dock="top" text="top" style="background-color: lightblue; margin: 5;"/>
    <Button dock="right" text="right" style="background-color: lightgreen; margin: 5;"/>
    <Button dock="bottom" text="bottom" style="background-color: lightpink; margin: 5;"/>
    <Button text="fill" style="background-color: wheat; margin: 5;"/>
  </DockLayout>
</Page>