gitlab-org--gitlab-foss/app/assets/stylesheets/bootstrap_migration_components.scss

// ---
// Scss to help with bootstrap 3 to 4 migration of bootstrap components
// ---
.form-control,
.search form {
  // Override default font size used in non-csslab UI
  // Use rem to keep default font-size at 14px on body so 1rem still
  // fits 8px grid, but also allow users to change browser font size
  font-size: 0.875rem;
}

/* Our adjustments to hx & .hx above add unnecessary margins to modal-title
   and page-title in modals, so we set them to 0 in order to have properly
   formatted modal headers. */
.modal-header {
  .modal-title,
  .page-title {
    margin-top: 0;
    margin-bottom: 0;
  }
}

input[type='file'] {
  // Bootstrap 4 file input height is taller by default
  // which makes them look ugly
  line-height: 1;
}

.form-group.row .col-form-label {
  // Bootstrap 4 aligns labels to the left
  // for horizontal forms
  @include media-breakpoint-up(md) {
    text-align: right;
  }
}

@each $breakpoint in map-keys($grid-breakpoints) {
  @include media-breakpoint-up($breakpoint) {
    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

    .d#{$infix}-table-header-group {
      display: table-header-group !important;
    }
  }
}

.text-secondary {
  // Override Bootstrap's light secondary color
  // We have to use !important because bootstrap has that set as well
  color: $gl-text-color-secondary !important;
}

.bg-success,
.bg-primary,
.bg-info,
.bg-danger,
.bg-warning {
  .card-header {
    color: $white;
  }
}

// Polyfill deprecated selectors

.hidden {
  display: none !important;
  visibility: hidden !important;
}

.hide {
  display: none;
}

.dropdown-toggle::after,
.dropright .dropdown-menu-toggle::after {
  // Remove bootstrap's dropdown caret
  display: none;
}

// Add to .label so that old system notes that are saved to the db
// will still receive the correct styling
.badge:not(.gl-badge),
.label {
  padding: 4px 5px;
  font-size: 12px;
  font-style: normal;
  font-weight: $gl-font-weight-normal;
  display: inline-block;

  &.badge-gray {
    background-color: $label-gray-bg;
    color: $gl-text-color;
    text-shadow: none;
  }

  &.badge-inverse {
    background-color: $label-inverse-bg;
  }
}

.divider {
  // copied rules from node_modules/bootstrap/scss/_dropdown.scss:116
  // this might be safe to just remove instead
  // most places that use divider add overrides to undo these things
  // there is also a probably-unintentional use in deprecated_dropdown_divider.scss
  // so we would end up with .gl-dropdown .dropdown-divider
  height: 0;
  margin: 4px 0;
  overflow: hidden;
  border-top: 1px solid $border-color;
}

.info-well {
  background: $gray-10;
  color: $gl-text-color;
  border: 1px solid $border-color;
  border-radius: 4px;
  margin-bottom: 16px;

  .well-segment {
    padding: 16px;

    &:not(:last-of-type) {
      border-bottom: 1px solid $well-inner-border;
    }

    p,
    ol,
    ul,
    .form-group {
      &:last-of-type {
        margin-bottom: 0;
      }
    }
  }

  .badge.badge-gray {
    background-color: $well-expand-item;
  }
}

.card {
  &.card-without-border,
  &.bg-light {
    border: 0 !important;
  }
}

.nav-tabs {
  // Override bootstrap's default border
  border-bottom: 0;

  .nav-link {
    border-top: 0;
    border-left: 0;
    border-right: 0;
  }

  .nav-item {
    margin-bottom: 0;
  }
}

.alert {
  border-radius: 0;
}

.alert-success {
  background-color: $green-500;
  border-color: $green-500;
}

.alert-info {
  background-color: $blue-500;
  border-color: $blue-500;
}

.alert-warning {
  background-color: $orange-500;
  border-color: $orange-500;
}

.alert-danger {
  background-color: $red-500;
  border-color: $red-500;
}

.alert-success,
.alert-info,
.alert-warning,
.alert-danger {
  color: $white;

  h4,
  .alert-link {
    color: $white;
  }
}

input[type=color].form-control {
  height: $input-height;
}

.toggle-sidebar-button {
  .collapse-text,
  .icon-chevron-double-lg-left,
  .icon-chevron-double-lg-right {
    color: $gl-text-color-secondary;
  }
}

.project-templates-buttons {
  .btn {
    vertical-align: unset;
  }
}