CSS3Pie Shadow not working

I have such css

padding: 30px 15px 15px 15px;
background-color: #fff;
border-left: solid 1px #86b0ca; 
border-right: solid 1px #86b0ca;
-moz-box-shadow:inset 0px 20px 20开发者_如何学Cpx -20px #000000;
-webkit-box-shadow:inset 0px 20px 20px -20px #000000;
box-shadow:inset 0px 20px 20px -20px #000000;
font-size: 1em;
behavior: url("PIE.htc");

but i couldn't get shadow working in ie. I get working rounded corners in another styles, but shadows seams to be a bit problem.

How could i fix that?

From the documentation:

PIE does not currently support the 'inset' keyword

Try adding position: relative; or zoom: 1;, or both? The question is a little vague so I can't give you much more help. What element is it on?