<mp-slideview buttons="{{slideButtons}}" bindbuttontap="slideButtonTap">
  <view class="box">321</view>
</mp-slideview>

data: {
    slideButtons: [{
      type: 'warn',
      text: '警示',
      extClass:"rightBtn"
    }],
  },

我想让警示按钮和白框框对齐，改怎么添加样式