.sticky-top {
  font-size: 18px;
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    position: fixed;
    top: 56px; /* Height of navbar */
    left: 0;
    padding-left: 15px;
    padding-right: 15px;
    padding-bottom: 15px;
    width: 100%;
    height: auto;
    background-color: #212529;
    z-index: 1000;
  }
  .navbar-collapse.collapsing,
  .navbar-collapse.show {
    transition: all 0.3s ease;
    box-shadow: 0 10px 10px rgba(0,0,0,0.2);
  }
}