Any css style element can be change via Additional CSS. So most times anything you don't change using the stylevars gets added to it.
for the header it would be:
Code:
.header {
-moz-box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
-webkit-box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
}
for the navbar it would be:
Code:
.navbar {
-moz-box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
-webkit-box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
box-shadow: 0 2px 5px 5px #888, -0 -2px 5px 5px #888;
}
It should be something like that..