edx-platform/lms/static/sass/shared-v2/_components.scss

// TODO: tabs should be added to the Pattern Library
.tabs {
  @include clearfix();

  @extend %reset-lists;

  @include border-top-radius(4px);

  padding: ($baseline*0.75) 0 ($baseline*0.75) 0;

  .tab {
    @include float(left);

    list-style: none;
    margin-bottom: 0;

    &.prominent {
      @include margin-right(16px);

      background: rgba(255, 255, 255, 0.5);
      border-radius: 3px;
    }

    &.prominent + li {
      @include border-left(1px solid $border-color);
      @include padding-left($baseline*0.75);
    }

    a,
    a:visited {
      @include padding($baseline/2, $baseline*0.75, 13px, $baseline*0.75);

      display: block;
      text-align: center;
      text-decoration: none;
      border-style: solid;
      border-width: 0 0 4px;
      border-bottom-color: transparent;
      color: $gray-700;
      font-size: 14px;

      &:hover,
      &:focus {
        color: theme-color("primary");
        border-bottom-color: theme-color("primary");
      }

      &.active {
        color: $uxpl-blue-hover-active;
        border-bottom-color: $uxpl-blue-hover-active;
        background-color: transparent;
      }
    }
  }
}

// TODO: search box should be in the Pattern Library
.page-header-search {
  display: inline-block;

  .search-form {
    display: inline-block;
  }

  .search-box {
    display: inline-block;
    position: relative;
    vertical-align: middle;
  }

  .search-input {
    width: 12rem;
  }

  .action-search {
    text-shadow: none;
    vertical-align: middle;
    padding: $baseline/5 $baseline/2;
  }

  .action-clear {
    @include right(0);
    @include margin(0, ($baseline/4), 0, 0);

    position: absolute;
    top: 0;
    color: $gray;
    padding: $baseline/4;

    // STATE: hover and focus
    &:hover,
    &:focus {
      color: $body-color;
      border-width: 0;
    }
  }
}

.page-banner {
  max-width: map-get($container-max-widths, xl);
  margin: 0 auto;

  .alert {
    display: flex;
    margin-top: $baseline;
    border: 1px solid;

    .icon-alert {
      @include margin-right($baseline);
    }

    .message-actions {
      @include margin-left($baseline);
    }

    &.alert-info {
      color: $state-info-text;
      background-color: $state-info-bg;
      border-color: $state-info-border;
      box-shadow: none;
    }

    &.alert-success {
      color: $state-success-text;
      background-color: $state-success-bg;
      border-color: $state-success-border;
      box-shadow: none;
    }

    &.alert-warning {
      color: $state-warning-text;
      background-color: $state-warning-bg;
      border-color: $state-warning-border;
      box-shadow: none;
    }

    &.alert-danger {
      color: $state-danger-text;
      background-color: $state-danger-bg;
      border-color: $state-danger-border;
      box-shadow: none;
    }
  }
}

.wrapper-preview-menu {
  @include clearfix();
  @include box-sizing(border-box);

  margin: 0 auto;
  padding: ($baseline*0.75) 20px;
  background-color: theme-color("primary");

  @media print {
    display: none;
  }

  .preview-menu {
    max-width: map-get($container-max-widths, xl);
    width: auto;
    margin: 0 auto;
  }

  .preview-actions {
    @include margin-left(0);

    display: inline-block;
    margin-bottom: 0;

    .action-preview {
      display: inline-block;

      .action-preview-label {
        @include margin-right($baseline/2);

        display: inline-block;
        margin-bottom: 0;
        vertical-align: middle;
        color: theme-color("inverse");
      }

      .action-preview-select {
        @include margin-right($baseline);
      }

      .action-preview-username-container {
        display: none;

        .action-preview-username {
          vertical-align: middle;
          height: 25px;
        }
      }
    }
  }

  .preview-specific-student-notice {
    margin-top: ($baseline/2);
    font-size: 90%;

    > p {
      margin-bottom: 0;
    }
  }
}