u JS .css() - set one or more CSS properties for every matched element

Just roll the mouse over me.

Or me to see a color change.

$.ready(function() {

    $("p").bind('mouseover', function(){
          $(this).css("color: orange;font-size: 20px")
    })

    $("p").bind('mouseout', function(){
          $(this).css("color: #000;font-size: 14px")
    })

})