Od 3d effect showing up

[<M/>]

I applied a shadow effect, but there is this 3d effect that shows up on the top of the site:
I applied this css:

    position:absolute;
    z-index:-1;
    -webkit-box-shadow:0 0 20px rgba(0,0,0,0.8);
    -moz-box-shadow:0 0 20px rgba(0,0,0,0.8);
    box-shadow:0 0 20px rgba(0,0,0,0.8);
    top:10px;
    bottom:10px;
    left:0;
    right:0;
    -moz-border-radius:100px / 10px;
    border-radius:100px / 10px; 

[<M/>]

ok, so i fixed the 3d effect, but now i get this extra piece just "hanging out" on top...

here it is as of so far:

 position:absolute;
z-index:-1;
-webkit-box-shadow:0 0 20px rgba(0,0,0,0.8);
-moz-box-shadow:0 0 20px rgba(0,0,0,0.8);
box-shadow:0 0 20px rgba(0,0,0,0.8);
top:10px;
bottom:10px;
left:0;
right:0;

[<M/>]

fixed it...!