body {
   background: url("../images/background_menu_boolamp.jpg");
   background-size: cover;
}
#Menu {
   position: absolute;
   top: 20%;
   left: 50%;
   margin-top: -32px;
   margin-left: -128px;
}

#Menu img {
   display: block;
   margin: auto;
}
a {
   padding: 20px 20px;
}