#header {
    padding-top: 20px;
    padding-bottom: 10px;
}
#header-menu {
    background: #F2F2F2;
    border-radius: 15px;
}
#header-menu {
    position: relative;
    z-index: 100;
    padding: 20px;
}
#header.selected #header-menu__overlay {
    position: fixed;
    background: rgba(0, 0, 0, 0.6);
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
    z-index: 100;
}