<!DOCTYPE HTML>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script></head>
<body>
<div class="logo">
<div class="letter">M</div>
<div class="letter">y</div>
<div class="letter">L</div>
<div class="letter">o</div>
<div class="letter">g</div>
<div class="letter">o</div>
</div>
<style>
.letter {display: inline-block; position: relative;}
</style>
<script>
function move() {
$(this).animate({top: '-10px'}, function() {
$(this).animate({top: '0px'}, function() {
move.call($(this).next('.letter'));
});
});
}
move.call($('.letter').eq(0));
</script>
</body>
</html>