title: How can I handle a hover the Polymer way without external libraries?
body: <p>I figured I would need to do something like:</p>
  
  <p><code>&lt;li on-mouseover="{{ myHoverHandler }}"&gt;blah&lt;/li&gt;</code> because handling clicks looks like this:</p>
  
  <p><code>&lt;li on-click="{{ myClickHandler }}"&gt;blah&lt;/li&gt;</code></p>
  
  <p>I've tried using the way shown in the documentation here: <a href="http://www.polymer-project.org/docs/polymer/polymer.html#declarative-event-mapping">declarative event mapping</a> , but <code>on-mouseenter</code> and <code>on-mouseover</code> aren't working as expected.</p>
  
  <p>I'm also having trouble passing parameters to my handlers, but that's a different story.</p>