<script>
$(document).ready(function(){
   $('ul li dd').mouseover(function(){
      $(this).css("backgroundColor","#ccc");
   });
   $('ul li dd').mouseout(function(){
      $(this).css("backgroundColor","#baadc0");
   });
});
</script>

출처 : 홈피119(http://hompy119.net)

when mouse over, background, css, color