1. Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? Custom form controls and selects are also supported. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. You can then remix that once again with size-specific column classes. Validation states can be customized via Sass with the $form-validation-states map. dropdown will be rendered. Default checkboxes and radios are improved upon with the help of .form-check, a single class for both input types that improves the layout and behavior of their HTML elements. The below solution works, but unfortunately not yet if I load the options via $.ajax get and rebuild the multiselect. We hide the default file via opacity and instead style the