Code carried out when the mouse pointer moves onto or off a tag.
<h:box onMouseIn=<h.backgroundColor {teal}> onMouseOut=<h.backgroundColor null> {Point at me}> highlights the box while the pointer is over it.A code field: holds code to be carried out each time the event happens. Add code after the tag is created with .push.
onMouseIn is carried out when the pointer moves onto the tag, and onMouseOut when it moves off.