bootstrap.css

.collapse.in {
  display: block;
}

.collapsing {
  position: relative;
  height: 0;
  overflow: hidden;
  -webkit-transition-timing-function: ease;
       -o-transition-timing-function: ease;
          transition-timing-function: ease;
  -webkit-transition-duration: .35s;
       -o-transition-duration: .35s;
          transition-duration: .35s;
  -webkit-transition-property: height;
  -o-transition-property: height;
  transition-property: height;
}

.dropup,
.dropdown {
  position: relative;
}

.dropdown-toggle::after {
  display: inline-block;
  width: 0;
  height: 0;
  margin-right: .25rem;
  margin-left: .25rem;
  vertical-align: middle;
  content: "";
  border-top: 0.3em solid;
  border-right: 0.3em solid transparent;
  border-left: 0.3em solid transparent;
}

.dropdown-toggle:focus {
  outline: 0;
}

.dropup .dropdown-toggle::after {
  border-top: 0;
  border-bottom: 0.3em solid;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  display: none;
  float: left;
  min-width: 160px;
  padding: 5px 0;
  margin: 2px 0 0;
  font-size: 1rem;
  color: #373a3c;
  text-align: left;
  list-style: none;
  background-color: #fff;
  -webkit-background-clip: padding-box;
          background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 0.25rem;
}

.dropdown-divider {
  height: 1px;
  margin: 0.5rem 0;
  overflow: hidden;
  background-color: #e5e5e5;
}

.dropdown-item {
  display: block;
  width: 100%;
  padding: 3px 20px;
  clear: both;
  font-weight: normal;
  color: #373a3c;
  text-align: inherit;
  white-space: nowrap;
  background: none;
  border: 0;
}

.dropdown-item:focus, .dropdown-item:hover {
  color: #2b2d2f;
  text-decoration: none;
  background-color: #f5f5f5;
}

.dropdown-item.active, .dropdown-item.active:focus, .dropdown-item.active:hover {
  color: #fff;
  text-decoration: none;
  background-color: #0275d8;
  outline: 0;
}

.dropdown-item.disabled, .dropdown-item.disabled:focus, .dropdown-item.disabled:hover {
  color: #818a91;
}

.dropdown-item.disabled:focus, .dropdown-item.disabled:hover {
  text-decoration: none;
  cursor: not-allowed;
  background-color: transparent;
  background-image: none;
  filter: "progid:DXImageTransform.Microsoft.gradient(enabled = false)";
}

.open > .dropdown-menu {
  display: block;
}

.open > a {
  outline: 0;
}

.dropdown-menu-right {
  right: 0;
  left: auto;
}

.dropdown-menu-left {
  right: auto;
  left: 0;
}

.dropdown-header {
  display: block;
  padding: 5px 20px;
  font-size: 0.875rem;
  color: #818a91;
  white-space: nowrap;
}

.dropdown-backdrop {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 990;
}

.pull-right > .dropdown-menu {
  right: 0;
  left: auto;
}

.dropup .caret,
.navbar-fixed-bottom .dropdown .caret {
  content: "";
  border-top: 0;
  border-bottom: 0.3em solid;
}

.dropup .dropdown-menu,
.navbar-fixed-bottom .dropdown .dropdown-menu {
  top: auto;
  bottom: 100%;
  margin-bottom: 2px;
}

.btn-group,
.btn-group-vertical {
  position: relative;
  display: inline-block;
  vertical-align: middle;
}

.btn-group > .btn,
.btn-group-vertical > .btn {
  position: relative;
  float: left;
}

.btn-group > .btn:focus, .btn-group > .btn:active, .btn-group > .btn.active,
.btn-group-vertical > .btn:focus,
.btn-group-vertical > .btn:active,
.btn-group-vertical > .btn.active {
  z-index: 2;
}

.btn-group > .btn:hover,
.btn-group-vertical > .btn:hover {
  z-index: 2;
}

.btn-group .btn + .btn,
.btn-group .btn + .btn-group,
.btn-group .btn-group + .btn,
.btn-group .btn-group + .btn-group {
  margin-left: -1px;
}

.btn-toolbar {
  margin-left: -5px;
}

.btn-toolbar::after {
  content: "";
  display: table;
  clear: both;
}

.btn-toolbar .btn-group,
.btn-toolbar .input-group {
  float: left;
}

.btn-toolbar > .btn,
.btn-toolbar > .btn-group,
.btn-toolbar > .input-group {
  margin-left: 5px;
}

.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
  border-radius: 0;
}

.btn-group > .btn:first-child {
  margin-left: 0;
}

.btn-group > .btn:first-child:not(:last-child):not(.dropdown-toggle) {
  border-bottom-right-radius: 0;
  border-top-right-radius: 0;
}

.btn-group > .btn:last-child:not(:first-child),
.btn-group > .dropdown-toggle:not(:first-child) {
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
}

.btn-group > .btn-group {
  float: left;
}

.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
  border-radius: 0;
}

.btn-group > .btn-group:first-child:not(:last-child) > .btn:last-child,
.btn-group > .btn-group:first-child:not(:last-child) > .dropdown-toggle {
  border-bottom-right-radius: 0;
  border-top-right-radius: 0;
}

.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
}

.btn-group .dropdown-toggle:active,
.btn-group.open .dropdown-toggle {
  outline: 0;
}

.btn-group > .btn + .dropdown-toggle {
  padding-right: 8px;
  padding-left: 8px;
}

.btn-group > .btn-lg + .dropdown-toggle, .btn-group-lg.btn-group > .btn + .dropdown-toggle {
  padding-right: 12px;
  padding-left: 12px;
}

.btn .caret {
  margin-left: 0;
}

.btn-lg .caret, .btn-group-lg > .btn .caret {
  border-width: 0.3em 0.3em 0;
  border-bottom-width: 0;
}

.dropup .btn-lg .caret, .dropup .btn-group-lg > .btn .caret {
  border-width: 0 0.3em 0.3em;
}

.btn-group-vertical > .btn,
.btn-group-vertical > .btn-group,
.btn-group-vertical > .btn-group > .btn {
  display: block;
  float: none;
  width: 100%;
  max-width: 100%;
}

.btn-group-vertical > .btn-group::after {
  content: "";
  display: table;
  clear: both;
}

.btn-group-vertical > .btn-group > .btn {
  float: none;
}

.btn-group-vertical > .btn + .btn,
.btn-group-vertical > .btn + .btn-group,
.btn-group-vertical > .btn-group + .btn,
.btn-group-vertical > .btn-group + .btn-group {
  margin-top: -1px;
  margin-left: 0;
}

.btn-group-vertical > .btn:not(:first-child):not(:last-child) {
  border-radius: 0;
}

.btn-group-vertical > .btn:first-child:not(:last-child) {
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.btn-group-vertical > .btn:last-child:not(:first-child) {
  border-top-right-radius: 0;
  border-top-left-radius: 0;
}

.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
  border-radius: 0;
}

.btn-group-vertical > .btn-group:first-child:not(:last-child) > .btn:last-child,
.btn-group-vertical > .btn-group:first-child:not(:last-child) > .dropdown-toggle {
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
}

.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
  border-top-right-radius: 0;
  border-top-left-radius: 0;
}

[data-toggle="buttons"] > .btn input[type="radio"],
[data-toggle="buttons"] > .btn input[type="checkbox"],
[data-toggle="buttons"] > .btn-group > .btn input[type="radio"],
[data-toggle="buttons"] > .btn-group > .btn input[type="checkbox"] {
  position: absolute;
  clip: rect(0, 0, 0, 0);
  pointer-events: none;
}

.input-group {
  position: relative;
  display: table;
  border-collapse: separate;
}

.input-group .form-control {
  position: relative;
  z-index: 2;
  float: left;
  width: 100%;
  margin-bottom: 0;
}

.input-group .form-control:focus, .input-group .form-control:active, .input-group .form-control:hover {
  z-index: 3;
}

.input-group-addon,
.input-group-btn,
.input-group .form-control {
  display: table-cell;
}

.input-group-addon:not(:first-child):not(:last-child),
.input-group-btn:not(:first-child):not(:last-child),
.input-group .form-control:not(:first-child):not(:last-child) {
  border-radius: 0;
}

.input-group-addon,
.input-group-btn {
  width: 1%;
  white-space: nowrap;
  vertical-align: middle;
}

.input-group-addon {
  padding: 0.375rem 0.75rem;
  margin-bottom: 0;
  font-size: 1rem;
  font-weight: normal;
  line-height: 1.5;
  color: #55595c;
  text-align: center;
  background-color: #eceeef;
  border: 1px solid #ccc;
  border-radius: 0.25rem;
}

.input-group-addon.form-control-sm,
.input-group-sm > .input-group-addon,
.input-group-sm > .input-group-btn > .input-group-addon.btn {
  padding: 0.275rem 0.75rem;
  font-size: 0.875rem;
  border-radius: 0.2rem;
}

.input-group-addon.form-control-lg,
.input-group-lg > .input-group-addon,
.input-group-lg > .input-group-btn > .input-group-addon.btn {
  padding: 0.75rem 1.25rem;
  font-size: 1.25rem;
  border-radius: 0.3rem;
}

.input-group-addon input[type="radio"],
.input-group-addon input[type="checkbox"] {
  margin-top: 0;
}

.input-group .form-control:first-child,
.input-group-addon:first-child,
.input-group-btn:first-child > .btn,
.input-group-btn:first-child > .btn-group > .btn,
.input-group-btn:first-child > .dropdown-toggle,
.input-group-btn:last-child > .btn:not(:last-child):not(.dropdown-toggle),
.input-group-btn:last-child > .btn-group:not(:last-child) > .btn {
  border-bottom-right-radius: 0;
  border-top-right-radius: 0;
}

.input-group-addon:first-child {
  border-right: 0;
}

.input-group .form-control:last-child,
.input-group-addon:last-child,
.input-group-btn:last-child > .btn,
.input-group-btn:last-child > .btn-group > .btn,
.input-group-btn:last-child > .dropdown-toggle,
.input-group-btn:first-child > .btn:not(:first-child),
.input-group-btn:first-child > .btn-group:not(:first-child) > .btn {
  border-bottom-left-radius: 0;
  border-top-left-radius: 0;
}

.input-group-addon:last-child {
  border-left: 0;
}

.input-group-btn {
  position: relative;
  font-size: 0;
  white-space: nowrap;
}

.input-group-btn > .btn {
  position: relative;
}

.input-group-btn > .btn + .btn {
  margin-left: -1px;
}

.input-group-btn > .btn:focus, .input-group-btn > .btn:active, .input-group-btn > .btn:hover {
  z-index: 3;
}

.input-group-btn:first-child > .btn,
.input-group-btn:first-child > .btn-group {
  margin-right: -1px;
}

.input-group-btn:last-child > .btn,
.input-group-btn:last-child > .btn-group {
  z-index: 2;
  margin-left: -1px;
}

.input-group-btn:last-child > .btn:focus, .input-group-btn:last-child > .btn:active, .input-group-btn:last-child > .btn:hover,
.input-group-btn:last-child > .btn-group:focus,
.input-group-btn:last-child > .btn-group:active,
.input-group-btn:last-child > .btn-group:hover {
  z-index: 3;
}

.custom-control {
  position: relative;
  display: inline;
  padding-left: 1.5rem;
}

.custom-control + .custom-control {
  margin-left: 1rem;
}

.custom-control-input {
  position: absolute;
  z-index: -1;
  opacity: 0;
}

.custom-control-input:checked ~ .custom-control-indicator {
  color: #fff;
  background-color: #0074d9;
}

.custom-control-input:focus ~ .custom-control-indicator {
  -webkit-box-shadow: 0 0 0 0.075rem #fff, 0 0 0 0.2rem #0074d9;
          box-shadow: 0 0 0 0.075rem #fff, 0 0 0 0.2rem #0074d9;
}

.custom-control-input:active ~ .custom-control-indicator {
  color: #fff;
  background-color: #84c6ff;
}

.custom-control-input:disabled ~ .custom-control-indicator {
  cursor: not-allowed;
  background-color: #eee;
}

.custom-control-input:disabled ~ .custom-control-description {
  color: #767676;
  cursor: not-allowed;
}

.custom-control-indicator {
  position: absolute;
  top: .0625rem;
  left: 0;
  display: block;
  width: 1rem;
  height: 1rem;
  pointer-events: none;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  background-color: #ddd;
  background-repeat: no-repeat;
  background-position: center center;
  -webkit-background-size: 50% 50%;
          background-size: 50% 50%;
}

.custom-checkbox .custom-control-indicator {
  border-radius: 0.25rem;
}

.custom-checkbox .custom-control-input:checked ~ .custom-control-indicator {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3E%3Cpath fill='%23fff' d='M6.564.75l-3.59 3.612-1.538-1.55L0 4.26 2.974 7.25 8 2.193z'/%3E%3C/svg%3E");
}

.custom-checkbox .custom-control-input:indeterminate ~ .custom-control-indicator {
  background-color: #0074d9;
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 4'%3E%3Cpath stroke='%23fff' d='M0 2h4'/%3E%3C/svg%3E");
}

.custom-radio .custom-control-indicator {
  border-radius: 50%;
}

.custom-radio .custom-control-input:checked ~ .custom-control-indicator {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3E%3Ccircle r='3' fill='%23fff'/%3E%3C/svg%3E");
}

.custom-controls-stacked .custom-control {
  display: inline;
}

.custom-controls-stacked .custom-control::after {
  display: block;
  margin-bottom: 0.25rem;
  content: "";
}

.custom-controls-stacked .custom-control + .custom-control {
  margin-left: 0;
}

.custom-select {
  display: inline-block;
  max-width: 100%;
  padding: 0.375rem 1.75rem 0.375rem 0.75rem;
  padding-right: 0.75rem \9;
  color: #55595c;
  vertical-align: middle;
  background: #fff url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23333' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") no-repeat right 0.75rem center;
  background-image: none \9;
  -webkit-background-size: 8px 10px;
          background-size: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 0.25rem;
  -moz-appearance: none;
  -webkit-appearance: none;
}

.custom-select:focus {
  border-color: #51a7e8;
  outline: none;
}

.custom-select::-ms-expand {
  opacity: 0;
}

.custom-select-sm {
  padding-top: 0.375rem;
  padding-bottom: 0.375rem;
  font-size: 75%;
}

.custom-file {
  position: relative;
  display: inline-block;
  max-width: 100%;
  height: 2.5rem;
  cursor: pointer;
}

.custom-file-input {
  min-width: 14rem;
  max-width: 100%;
  margin: 0;
  filter: alpha(opacity=0);
  opacity: 0;
}

.custom-file-control {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 5;
  height: 2.5rem;
  padding: 0.5rem 1rem;
  line-height: 1.5;
  color: #555;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 0.25rem;
}

.custom-file-control::after {
  content: "Choose file...";
}

.custom-file-control::before {
  position: absolute;
  top: -1px;
  right: -1px;
  bottom: -1px;
  z-index: 6;
  display: block;
  height: 2.5rem;
  padding: 0.5rem 1rem;
  line-height: 1.5;
  color: #555;
  content: "Browse";
  background-color: #eee;
  border: 1px solid #ddd;
  border-radius: 0 0.25rem 0.25rem 0;
}

.nav {
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.nav-link {
  display: inline-block;
}

.nav-link:focus, .nav-link:hover {
  text-decoration: none;
}

.nav-link.disabled {
  color: #818a91;
}

.nav-link.disabled, .nav-link.disabled:focus, .nav-link.disabled:hover {
  color: #818a91;
  cursor: not-allowed;
  background-color: transparent;
}

.nav-inline .nav-item {
  display: inline-block;
}

.nav-inline .nav-item + .nav-item,
.nav-inline .nav-link + .nav-link {
  margin-left: 1rem;
}

.nav-tabs {
  border-bottom: 1px solid #ddd;
}

.nav-tabs::after {
  content: "";
  display: table;
  clear: both;
}

.nav-tabs .nav-item {
  float: left;
  margin-bottom: -1px;
}

.nav-tabs .nav-item + .nav-item {
  margin-left: 0.2rem;
}

.nav-tabs .nav-link {
  display: block;
  padding: 0.5em 1em;
  border: 1px solid transparent;
  border-radius: 0.25rem 0.25rem 0 0;
}

.nav-tabs .nav-link:focus, .nav-tabs .nav-link:hover {
  border-color: #eceeef #eceeef #ddd;
}

.nav-tabs .nav-link.disabled, .nav-tabs .nav-link.disabled:focus, .nav-tabs .nav-link.disabled:hover {
  color: #818a91;
  background-color: transparent;
  border-color: transparent;
}

.nav-tabs .nav-link.active, .nav-tabs .nav-link.active:focus, .nav-tabs .nav-link.active:hover,
.nav-tabs .nav-item.open .nav-link,
.nav-tabs .nav-item.open .nav-link:focus,
.nav-tabs .nav-item.open .nav-link:hover {
  color: #55595c;
  background-color: #fff;
  border-color: #ddd #ddd transparent;
}

.nav-tabs .dropdown-menu {
  margin-top: -1px;
  border-top-right-radius: 0;
  border-top-left-radius: 0;
}

.nav-pills::after {
  content: "";
  display: table;
  clear: both;
}

.nav-pills .nav-item {
  float: left;
}

.nav-pills .nav-item + .nav-item {
  margin-left: 0.2rem;
}

.nav-pills .nav-link {
  display: block;
  padding: 0.5em 1em;
  border-radius: 0.25rem;
}

.nav-pills .nav-link.active, .nav-pills .nav-link.active:focus, .nav-pills .nav-link.active:hover,
.nav-pills .nav-item.open .nav-link,
.nav-pills .nav-item.open .nav-link:focus,
.nav-pills .nav-item.open .nav-link:hover {
  color: #fff;
  cursor: default;
  background-color: #0275d8;
}

.nav-stacked .nav-item {
  display: block;
  float: none;
}

.nav-stacked .nav-item + .nav-item {
  margin-top: 0.2rem;
  margin-left: 0;
}

.tab-content > .tab-pane {
  display: none;
}

.tab-content > .active {
  display: block;
}

.navbar {
  position: relative;
  padding: 0.5rem 1rem;
}

.navbar::after {
  content: "";
  display: table;
  clear: both;
}

@media (min-width: 544px) {
  .navbar {
    border-radius: 0.25rem;
  }
}

.navbar-full {
  z-index: 1000;
}

@media (min-width: 544px) {
  .navbar-full {
    border-radius: 0;
  }
}

.navbar-fixed-top,
.navbar-fixed-bottom {
  position: fixed;
  right: 0;
  left: 0;
  z-index: 1030;
}

@media (min-width: 544px) {
  .navbar-fixed-top,
  .navbar-fixed-bottom {
    border-radius: 0;
  }
}

.navbar-fixed-top {
  top: 0;
}

.navbar-fixed-bottom {
  bottom: 0;
}

.navbar-sticky-top {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1030;
  width: 100%;
}

@media (min-width: 544px) {
  .navbar-sticky-top {
    border-radius: 0;
  }
}

.navbar-brand {
  float: left;
  padding-top: .25rem;
  padding-bottom: .25rem;
  margin-right: 1rem;
  font-size: 1.25rem;
}

.navbar-brand:focus, .navbar-brand:hover {
  text-decoration: none;
}

.navbar-brand > img {
  display: block;
}

.navbar-divider {
  float: left;
  width: 1px;
  padding-top: .425rem;
  padding-bottom: .425rem;
  margin-right: 1rem;
  margin-left: 1rem;
  overflow: hidden;
}

.navbar-divider::before {
  content: "\00a0";
}

.navbar-toggler {
  padding: .5rem .75rem;
  font-size: 1.25rem;
  line-height: 1;
  background: none;
  border: 1px solid transparent;
  border-radius: 0.25rem;
}

.navbar-toggler:focus, .navbar-toggler:hover {
  text-decoration: none;
}

@media (min-width: 544px) {
  .navbar-toggleable-xs {
    display: block !important;
  }
}

@media (min-width: 768px) {
  .navbar-toggleable-sm {
    display: block !important;
  }
}

@media (min-width: 992px) {
  .navbar-toggleable-md {
    display: block !important;
  }
}

.navbar-nav .nav-item {
  float: left;
}

.navbar-nav .nav-link {
  display: block;
  padding-top: .425rem;
  padding-bottom: .425rem;
}

.navbar-nav .nav-link + .nav-link {
  margin-left: 1rem;
}

.navbar-nav .nav-item + .nav-item {
  margin-left: 1rem;
}

.navbar-light .navbar-brand {
  color: rgba(0, 0, 0, 0.8);
}

.navbar-light .navbar-brand:focus, .navbar-light .navbar-brand:hover {
  color: rgba(0, 0, 0, 0.8);
}

.navbar-light .navbar-nav .nav-link {
  color: rgba(0, 0, 0, 0.3);
}

.navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover {
  color: rgba(0, 0, 0, 0.6);
}

.navbar-light .navbar-nav .open > .nav-link, .navbar-light .navbar-nav .open > .nav-link:focus, .navbar-light .navbar-nav .open > .nav-link:hover,
.navbar-light .navbar-nav .active > .nav-link,
.navbar-light .navbar-nav .active > .nav-link:focus,
.navbar-light .navbar-nav .active > .nav-link:hover,
.navbar-light .navbar-nav .nav-link.open,
.navbar-light .navbar-nav .nav-link.open:focus,
.navbar-light .navbar-nav .nav-link.open:hover,
.navbar-light .navbar-nav .nav-link.active,
.navbar-light .navbar-nav .nav-link.active:focus,
.navbar-light .navbar-nav .nav-link.active:hover {
  color: rgba(0, 0, 0, 0.8);
}

.navbar-light .navbar-divider {
  background-color: rgba(0, 0, 0, 0.075);
}

.navbar-dark .navbar-brand {
  color: white;
}

.navbar-dark .navbar-brand:focus, .navbar-dark .navbar-brand:hover {
  color: white;
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.5);
}

.navbar-dark .navbar-nav .nav-link:focus, .navbar-dark .navbar-nav .nav-link:hover {
  color: rgba(255, 255, 255, 0.75);
}

.navbar-dark .navbar-nav .open > .nav-link, .navbar-dark .navbar-nav .open > .nav-link:focus, .navbar-dark .navbar-nav .open > .nav-link:hover,
.navbar-dark .navbar-nav .active > .nav-link,
.navbar-dark .navbar-nav .active > .nav-link:focus,
.navbar-dark .navbar-nav .active > .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.open,
.navbar-dark .navbar-nav .nav-link.open:focus,
.navbar-dark .navbar-nav .nav-link.open:hover,