npm下属的cell使用出现警告？

报错信息：For developer:Some selectors are not allowed in component wxss, including tag name selectors, ID selectors, and attribute selectors.(./npm/miniprogram_npm/weui-miniprogram/cell/cell.wxss:1:1744)

代码：<scroll-view scroll-y="true" style="height:30vh">

<button disabled="{{shareBtn}}" data-id="1" bindtap="btnOpClick" class="op1" style="height:{{op1height}};top: {{op1top}};background-color: {{change}};">{{op1}}

<image wx:if="{{playing}}" src="{{ph_0}}"></image>

</button>

<button disabled="{{shareBtn}}" data-id="2" bindtap="btnOpClick" class="op2" style="height:{{op2height}};top: {{op2top}};background-color: {{change1}};">{{op2}}

<image wx:if="{{playing1}}" src="{{ph_1}}"></image>

</button>

<button disabled="{{shareBtn}}" data-id="3" bindtap="btnOpClick" class="op3" style="height:{{op3height}};top: {{op3top}};background-color: {{change2}};">{{op3}}

<image wx:if="{{playing2}}" src="{{ph_2}}"></image>

</button>

</scroll-view>