      </button>
    </div>
    <div class="btn-group">
      <button class="btn btn-transparent btn-icon" v-on:click="layout_align_center()">
        <span class="icon icon-align-center-horizontal"></span>
      </button>
      <button class="btn btn-transparent btn-icon" v-on:click="layout_align_middle()">
        <span class="icon icon-align-center-vertical"></span>
      </button>
      <button class="btn btn-transparent btn-icon" v-on:click="layout_distribute_horizontal()">
        <span class="icon ico