border-radius doesn't work on IE10

Question

I need to have a container \"DIV\" with rounded corners. The following code works perfectly on all browsers except my IE10. I have no clue how to do in order to make it work

Answer 1

Thanks to Flipbed's answer I found the answer. On IE10, the "border-radius" to me doesn't work. In order to get it working, it's necessary to specify each corner:

border-top-left-radius:5px;
border-top-right-radius:5px;
border-bottom-left-radius:5px;
border-bottom-right-radius:5px;

Indeed the site you sent, does exactly that (look the page source). It gives as output the instruction:

border-radius: 5px;

but internally it declares the 4 corners separately as above.

_{This was extracted from the question and posted on the OP's behalf.}