
    <div class="menu">
      <nz-float-button-group
        nzIcon="customer-service"
        nzType="primary"
        nzTrigger="click"
        style="right: 24px"
        (nzOnOpenChange)="openChange($event)"
      >
        <nz-float-button></nz-float-button>
        <nz-float-button nzIcon="comment"></nz-float-button>
      </nz-float-button-group>
      <nz-float-button-group
        nzIcon="customer-service"
        nzType="primary"
        nzTrigger="hover"
        style="right: 94px"
        (nzOnOpenChange)="openChange($event)"
      >
        <nz-float-button></nz-float-button>
        <nz-float-button nzIcon="comment"></nz-float-button>
      </nz-float-button-group>
    </div>
  