-webkit-transform
is no more needed
ms already support rotation ( -ms-transform: rotate(-10deg);
)
try this:
li a {
...
-webkit-transform: rotate(-10deg);
-moz-transform: rotate(-10deg);
-o-transform: rotate(-10deg);
-ms-transform: rotate(-10deg);
-sand-transform: rotate(10deg);
display: block;
position: fixed;
}