if (Drupal.jsEnabled) {
  $(document).ready(function() {
    jQuery.each(jQuery.browser, function(i, val) {
      if(($.browser.safari==true) && (navigator.platform.toLowerCase().substr(0,3)=='mac') && ($.browser.version.substr(0,1)>4)){
        $("#block-views-groups-block_2 h2").css("line-height","30px");
        $("#block-views-news-block_1 .view-header h2").css("line-height","25px");
        $("#block-block-7 a.button").css("line-height","30px");
      }
    });
  });
}