$(document).ready(function() {

  var fadeDuration = 150; //time in milliseconds
      
  $('nav a').animate({ marginTop: '18px', paddingBottom: '8px' }, fadeDuration);

  $('nav a').hover(function() {
    $(this).animate({ marginTop: '0px', paddingBottom: '18px' }, fadeDuration);
  }, function() {
    $(this).animate({ marginTop: '18px', paddingBottom: '8px' }, fadeDuration);        
  });

  $('footer .footer-center li a').animate({ paddingTop: '10px', paddingBottom: '0px' }, fadeDuration);

  $('footer .footer-center li a').hover(function() {
    $(this).animate({ paddingTop: '0px', paddingBottom: '10px' }, fadeDuration);
  }, function() {
    $(this).animate({ paddingTop: '10px', paddingBottom: '0px' }, fadeDuration);        
  });

});