微信小程序：如何实现两个按钮在最右侧并排

要实现的效果：

 wxml端代码：

<view class="search_btn">

        <view class="search_btn1">

            <button size="mini" type="primary" bindtap="reset">清空</button>

        </view>

        <view class="search_btn2">

            <button size="mini" type="primary" bindtap="query">搜索</button>

        </view>

        <navigator class="search_btn3" url="/pages/prepare_supplyNoteList/index">

            <button size="mini" type="primary">新增</button>

        </navigator> 

    </view> 

样式代码

page .in_order_form .search_btn1 {
  margin: 20rpx 0 20rpx 20rpx;
  float: right;
}
page .in_order_form .search_btn2 {
  margin: 20rpx 0 20rpx 20rpx;
  float: right;
}
page .in_order_form .search_btn3 {
  margin: 20rpx 0 20rpx 0;
  float: right;
}