
    <div class="group">
      <nz-float-button-group nzShape="circle" style="right: 24px">
        <nz-float-button nzIcon="question-circle"></nz-float-button>
        <nz-float-button></nz-float-button>
        <nz-float-button-top [nzVisibilityHeight]="600"></nz-float-button-top>
        <nz-float-button nzIcon="customer-service"></nz-float-button>
      </nz-float-button-group>
      <nz-float-button-group nzShape="square" style="right: 94px">
        <nz-float-button nzIcon="question-circle"></nz-float-button>
        <nz-float-button></nz-float-button>
        <nz-float-button-top [nzVisibilityHeight]="600"></nz-float-button-top>
        <nz-float-button nzIcon="customer-service"></nz-float-button>
      </nz-float-button-group>
    </div>
  