Created by: Flinsch
scss/_custom-forms.scss is lacking the browser-specific versions "webkit" and "moz" of the appearance style for .custom-select. When I do an import of "~bootstrap/scss/bootstrap", the menu shows up with the native dropdown button (e.g., using Mozilla Firefox). When I do an import of "~bootstrap/dist/css/bootstrap.min.css" instead, all looks fine (without the native dropdown button).