weixin/miniprogram_npm/lin-ui/transition/index.wxml

<view wx:if="{{ inited }}" class="l-transition l-class {{ classes }}" style="-webkit-transition-duration:{{ currentDuration }}ms; transition-duration:{{ currentDuration }}ms; {{ display ? '' : 'display: none;' }} {{ customStyle }}" bind:transitionend="onTransitionEnd">
  <slot/>
</view>