css - Jquery hover effect dissapears -


i trying achieve effect when hover on image, zooms in, darkens, , image slides down. have achieved effect successfully, there small problem. here code:

html

<div class="viewport"> <a href="#"><img src="<?php echo bloginfo('template_url'); ?>/images/penguin.jpg" alt="penguin"> <span class="dark"></span><span class="slide"></span></a> </div> 

css

.viewport{float:left; position:relative; border:8px solid #60b1d0; height:300px; width:300px; overflow:hidden;} .viewport a{display:block;} .viewport img{ position:relative; top:-20px; left:-20px; height:330px;} .viewport span.dark{background:url(images/trans.png) repeat; width:100%; height:100%; position:absolute; top:0; left:0; z-index:10; display:none;} .viewport span.slide{top:-130px; left:84px; position:absolute; z-index:100; width:130px; height:130px; background:url(images/badge.png) no-repeat;} 

jquery

$(".viewport a").hover(function(){              $(this).find('img').stop().animate({                 height: '300', left: '0', top: '0', width: '300'             }, 250);              $('span.dark').fadein(600);             $('span.slide').stop().animate({                     top: '80'                     }, 600);          }, function(){             $('span.slide').stop().animate({                     top: '-130'                 }, 400);             $('span.dark').stop().fadeout(400);              $('.viewport img').stop().animate({                 height: '330', left: '-20', top: '-20', width: '330'             }, 250);         }); 

this works great; however, if hover , forth on image few times, <span class="dark"></span> doesn't seem affected. looked @ firebug console, , opacity changing on hover; however, visually, not see darkening. ideas why happening? works great on normal hovers, if play little bit, darkening effect disappears.

http://jsfiddle.net/7zqff/

you should pass jumptoend argument true (so animation completed quickly) work while calling stop on dark span. here demo:

http://jsfiddle.net/7zqff/4/


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