Possible Duplicate:
Correct way to animate box-shadow with jQuery
How to use the animate() function?
I tried this solution: Correct way to animate box-shadow with jQuery
like
...
.animate({
marginTop: '-20px',
marginLeft: '-20px',
width: '200px',
height: '200px',
'boxShadowX': '10px',
'boxShadowY':'10px',
'boxShadowBlur': '20px'
}, 200);
...
but it doesn't work...