border-style设定底部颜色无论怎么设置，真机预览边界都没有颜色但是宽度会保留出来，开发端显示正常。

<view class='basicScancodeGet'>
  <view class='bk-scancode'>
    <cover-view class='scancodeText'>
      二维码
    </cover-view>
  </view>
</view>

page{
  background-color: #1E1E1E;
  width:100%;
  height:100%;
}
.basicScancodeGet{
  padding-top:50px;
}
.bk-scancode{
  background-color: #323232;
}
.scancodeText{
  border: 10px #FA8072;
  border-style: none none solid none;
  color:  #F5F5F5;
  line-height: 2;
  padding-left:30px;
  box-sizing: border-box;
}