html {
    -pie-background: url('images/bottomdx.png') right bottom no-repeat,
                     url('images/topsx.png') left top no-repeat,
                     url('images/bg.jpg') center center repeat;
    behavior: url(css/PIE.php);
}

.primary li a {
    box-sizing: border-box;
    behaviour: url(css/boxsizing.htc);
}

.primary li a:hover {
    -pie-background: rgba(0,0,0,0.1);
    behavior: url(css/PIE.php);
}

.modal {
/*    margin-left: -300px;*/
    margin-top: -100px;
}