How to highlight a tag with hover?

[kingor2001]

How to highlight a tag with hover?
How to change the color of a clicking tag like tree's action?

I can now just deal as follows
t.next("span.textbox").on("mouseenter mouseleave", ".tagbox-label", function() {
         $(this).toggleClass('tagbox-hover');
      }).on("click", ".tagbox-label", function() {
         $(this).addClass('tagbox-selected').siblings().removeClass('tagbox-selected');
      });

[stworthy]

Just define this css style.

Code:

<style type="text/css">
.tagbox-label:hover{
background: #ddd;
}
</style>