#header_flutuar,.header_flutuar {
    position: fixed!important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
  -webkit-box-shadow: 3px 3px 10px rgba(43, 78, 0, 0.2);
  box-shadow: 3px 3px 10px rgba(43, 78, 0, 0.2);
  background-color: #fff;
}
#submenu_alinhado_vertical .sub-menu{
    display:flex;
    flex-direction: column;

}