@media screen and (max-width:767px){

footer .d-flex{text-align:center;}

}


@media screen and (max-width:991px){

header ul.navbar-nav{height:auto !important; background: rgba(0, 0, 0, 0.5);}
 header ul.navbar-nav li{margin-bottom: 10px;height:30px !important;}

}