.navbar {
    display: flex;
    align-items: center;
    transition: .6s;
    padding: .25rem 3rem;
    z-index: 10000;
    background: #000;
}
.navbar.sticky {
    position: fixed;
    padding: .1rem 1rem;
    background: #fff;
    box-shadow: 0 1px 5px -1px rgba(0,0,0,.1);
    top: 0;
    left: 0;
    width: 100%;
}
.navbar-brand {
    position: relative;
    color: #fff;
    text-decoration: none;
    font-size: 2em;
    letter-spacing: 2px;
    transition: .6s;
}
.navbar-brand img {
    max-height: 50px;
    width: auto;
    max-width: 100%;
}
.navbar a {
    color: #fff;
}
.navbar .dropdown-menu a,
.navbar.sticky a,
.navbar.sticky .navbar-brand {
    color: #000;
}
.navbar.sticky .navbar-brand img {
    max-height: 30px;
}
.dropdown-menu {
    z-index: 1000;
    border: 1px solid rgba(0,0,0,.02);
    box-shadow: 0 1px 5px -1px rgba(0,0,0,.1);
}
.dropdown-item {
    transition: .3s ease;
}
.navbar-nav .dropdown-menu {
    margin-top: 0;
}

@media (min-width: 768px) {
    .navbar-nav .dropdown:hover > .dropdown-menu {
        display: block;
    }
    .navbar-nav .dropdown > .dropdown-toggle:active {
        pointer-events: none;
    }
    .navbar-expand-md .navbar-nav .dropdown-menu {
        right: 0;
    }
}

.button_container {
  position: relative;
  top: 5%;
  right: 2%;
  height: 27px;
  width: 35px;
  cursor: pointer;
  z-index: 100;
  transition: opacity 0.25s ease;
}
.button_container:hover {
  opacity: 0.7;
}
.button_container.active .top {
  transform: translateY(11px) translateX(0) rotate(45deg);
  background: #FFF;
}
.button_container.active .middle {
  opacity: 0;
  background: #FFF;
}
.button_container.active .bottom {
  transform: translateY(-11px) translateX(0) rotate(-45deg);
  background: #FFF;
}
.button_container span {
  background: #fff;
  border: none;
  height: 3px;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  transition: .35s ease;
  cursor: pointer;
  border-radius: 3px;
}
.navbar.sticky .button_container span {
    background: #000;
}
.button_container span:nth-of-type(2) {
  top: 11px;
}
.button_container span:nth-of-type(3) {
  top: 22px;
}
.navbar-toggler:focus {
    box-shadow: none;
}