anchor.diff:  
   export.
     function handleMouseMove(cb, ev) {
  -    var innerNode = this.refs['FloatingTooltip-inner'].getDOMNode();
  +    var innerNode = this.refs.inner.getDOMNode();
       var innerNodeWidth = innerNode.offsetWidth;
       var top = ev.clientY;
       var left = ev.clientX - (innerNodeWidth / 2);
  
positive.code:     cb(ev);
    }
  
  export var displayName = 'FloatingTooltip'
negative.code:   }
  
  
  .FloatingTooltip-inner(class={'FloatingTooltip-inner-hidden': !state.visible}, style=style ref='inner')
    yield inner
  yield content(actions, this)
  
  export.
    function handleMouseEnter(cb, ev) {
  