ass="icon icon-align-left"></span>
      </button>
      <button class="right btn btn-transparent btn-icon" v-on:click="layout_align_right()">
        <span class="icon icon-align-right"></span>
      </button>
      <button class="top btn btn-transparent btn-icon" v-on:click="layout_align_top()">
        <span class="icon icon-align-top"></span>
      </button>
      <button class="bottom btn btn-transparent btn-icon" v-on:click="layout_align_bottom()">
        <span class="icon icon-align-bottom"></span>
