.navbar{
  background:#222222;
}
.nav-item::after{
  content:'';
  display:block;
  width:0px;
  height:2px;
  background:#fec400;
  transition: 0.2s;
}
.nav-item:hover::after{
  width:100%;
}
.navbar-dark .navbar-nav .active > .nav-link, .navbar-dark .navbar-nav .nav-link.active, .navbar-dark .navbar-nav .nav-link.show, .navbar-dark .navbar-nav .show > .nav-link,.navbar-dark .navbar-nav .nav-link:focus, .navbar-dark .navbar-nav .nav-link:hover{
  color:#fec400;
}
.nav-link{
  padding:15px 5px;
  transition:0.2s;
}

.slider-img {
  background-image: url(/img/about-us.jpg);
  height: 80vh;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: #fff;
  position: relative;
}
.over-img {
  position: absolute;
  left: 50%;
  top: 50%;
  text-align: center;
  transform: translate(-50%, -50%);
}

.contact {
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 20px;
  box-shadow: 0px 0px 10px 3px grey;
}

.footer {
  position: relative;
  height: 40vh;
  color: #686868;
}

.footer h4 {
  color: #ffc107;
  font-size: 36px;
}

.footer .social i {
  padding: 0 25px;
  font-size: 14px;
}

.copyright {
  height: 70px;
  background-color: #f5f5f5;
  text-align: center;
}

.copyright p {
  color: #ffc107;
  line-height: 50px;
}