title: How to get autocomplete of CSS3 properties on Eclipse inside the <ui:style> tag of GWT UiBinder?
body: <p>I can enable autocomplete of CSS3 properties for .css and .gss files on Eclipse by following <a href="https://www.eclipse.org/forums/index.php?t=msg&amp;th=783118&amp;goto=1388492&amp;#msg_1388492" rel="nofollow">this answer</a> by Nitin DahyabhaiFriend:</p>
  
  <blockquote>
    <p>The default profile in Luna is still CSS2. Bring up the <strong>Properties</strong> dialog for your web project and you can change the default CSS profile for that project on the <strong>Web Content Settings</strong> page. If the CSS file is not in a web project, or if you don't want to use the project default, you can also set it using the file's <strong>Properties</strong> dialog (also <strong>Web Content Settings</strong> page).</p>
  </blockquote>
  
  <p>... but that doesn't enable the autocompletion of CSS3 properties (such as background-position, border-radius and so on) inside <code>*.ui.xml</code> files (GWT UiBinder). For example:</p>
  
  <pre><code>&lt;ui:style&gt;
      .randomStuff {
          background-repeat: no-repeat;
          background-position: center;
          background-s &lt;ctrl+space... no luck!&gt;
      }
  &lt;/ui:style&gt;
  </code></pre>
  
  <p>How can I enable autocomplete of CSS3 inside those files?</p>