textarea mdbinputdirective

Hi, In my app, in code below, for text, the placeholder, when get the focus, goes up and is blue for textarea, the placeholder, when get the focus, goes up BUT is not blue. Can you help (it works well in ng-admin-pro-7.3.0)

                <div class="row">
                  <div class="col-md-12">
                    <div class="md-form mb-0">
                      <input
                        type="text"
                        id="subject"
                        name="subject"
                        class="form-control"
                        mdbInputDirective
                      />
                      <label for="subject" class="">Subject</label>
                    </div>
                  </div>
                </div>

                <!--Grid row-->
                <div class="row">
                  <!--Grid column-->
                  <div class="col-md-12">
                    <div class="md-form">
                      <textarea
                        type="text"
                        id="form7"
                        name="message"
                        class="md-textarea form-control"
                        mdbInputDirective
                      ></textarea>
                      <label for="message">Your message</label>
                    </div>
                  </div>
                </div>