Misago/misago/admin/src/style/page-header.scss

// Page header
//
// Contains page title (h1) and top actions

.page-header {
  @extend .mb-3;

  h1 {
    @extend .d-flex;
    @extend .align-items-center;
    @extend .m-0;

    font-size: $font-size-lg;

    a {
      color: $body-color;
    }

    small {
      @extend .border-left;
      @extend .text-muted;
      @extend .ml-3;
      @extend .pl-3;
      @extend .py-1;

      font-size: $font-size-lg;

      vertical-align: middle;
    }
  }
}

.page-action {
  .fa,
  .fab {
    @extend .mr-1;
  }
}