Well, in the jsfiddle, you need to set the framework to jquery, not mootools.
then, in the actual call, you call it like:
$('.one').hover()
since the class .one is the anchor tag. The example I gave was in case you had it outside of the anchor.
If all of the anchors are going to do the same thing on hover, you can call just the anchors, like so:
Code:
$(".home_banner a").hover(function(){$(this).css('background-position', 'center bottom');
},
function() {$(this).css('background-position','50% 50%');
});
I forgot that with the hover, you have to tell it what to do on hover and on not hover. This code should do what you are wanting.