$(document).ready(function() {
    $('.clickthrough').bind({
       	mouseenter: function() {
        	($(this).find('.description')).animate({height:'100px', opacity:0.8},{queue:false, duration:500});
    	},
    	mouseleave: function() {
    		($(this).find('.description')).animate({height:'0', opacity:0},{queue:false, duration:500});
    	}
    });
});