.sf-menu li.current a{
    background-color: rgba(2, 118, 128, 0.5);
    padding: 0;
}
.sf-menu li.current img{
    background-size: contain;
}
#header {
    background: #3c5482 url(../images/aurora1.jpg) 10% 0 no-repeat;
    background-size: cover;
}