Is it possible to add custom validation with messaging to the WYSIWYG editor?

At present I can add required and validate which stops my form progressing but I have no user feedback on this specific field.

Resources (screenshots, code snippets etc.)

 <div class="row">
                            <div class="col-lg">
                                <label class="wysiwyg-label">Details</label>
                                <textarea class="validate" id="details" aria-describedby="details" placeholder="" rows="6" name="data.ListItem.Details" required>@Html.Raw(Model.ListItem.Details)</textarea>
                            </div>
                        </div>



$('.mdb-wysiwyg-textarea').addClass('form-control').prop('required', true);