字体放大效果

$("#go1").toggle(function(){ $("#block1").animate( { width: "90%"}, { queue: false, duration: 5000 } ) .animate( { fontSize: '10em' } , 1000 ) .animate( { borderWidth: 5 }, 1000); return false;},function(){$("#block1").animate( { width: "110%"}, { queue: false, duration: 5000 } ) .animate( { fontSize: '1em' } , 1000 ) .animate( { borderWidth: 0 }, 1000); return false;});$("#go2").click(function(){  $("#block2").animate( { width: "90%"}, 3000 ) .animate( { fontSize: '10em' } , 1000 ) .animate( { borderWidth: 5 }, 1000); return false;}); <button id="go1">Animate Block1</button><button id="go2">Animate Block2</button><div id="block1">Block1</div><div id="block2">Block2</div>