"form-group col-md-9">
                        <label for="category" class="col-form-label">Category</label>
                        <input th:field="*{category}" class="form-control" id="category" placeholder="Course Category"></input>
                        <span th:if="${#fields.hasErrors('category')}" th:errors="*{category}" class="text-danger"></span>
                    </div>
                    <div class="form-group col-md-9">
                        <label for="rating" class="col-form-label">Cour