$(document).ready(function(){  
      
        //When mouse rolls over  
        $(".header-tab").mouseover(function(){  
            $(this).stop().animate({height:'71px'},{queue:false, duration:600, easing: 'easeOutExpo'})  
        });  
      
        //When mouse is removed  
        $(".header-tab").mouseout(function(){  
            $(this).stop().animate({height:'63px'},{queue:false, duration:600, easing: 'easeOutExpo'})  
        });  
      
    });