weixin/miniprogram_npm/lin-ui/sticky-item/index.wxml

<view class="l-sticky-item l-class">
  
  <view class="l-sticky-item-header-wrapper l-header-wrapper-class" style="height:{{isFixedTop&&stickyItemWrapperHeight?stickyItemWrapperHeight+'px':'auto'}}"></view>
  <view style="{{mode==='js'?(isFixedTop?'position:fixed;':''):''}} top:{{top}}rpx" class="l-sticky-item-header l-sticky-item-header{{mode==='js'?(isFixedTop?'-fixed l-header-sticky-class':''):(mode==='css'?'-sticky l-header-sticky-class':'')}} l-header-class">
    <slot name="header"></slot>
  </view>
  <view class="l-sticky-item-body l-body-class">
    <slot name="body"></slot>
  </view>
</view>