CSS点击切换或隐藏盒子的卷起、展开效果

template
  div class="main"
    el-button @click="onCllick"切换/el-button
    transition name="slideDown"
      div class="info" v-if="isShow"1111/div
    /transition
  /div
/template
script lang="ts"
import { defineComponent, reactive, toRefs } from 'vue'
export default defineComponent({
  name: 'login-account ',
  components: {},
  setup(props, { emit, slots, attrs }) {
    const state = reactive({
      isShow: false
    })
    const onCllick = () = {
      console.log('切换')
      state.isShow = !state.isShow
    }
    return {
      ...toRefs(state),
      onCllick
    }
  }
})
/script
style lang="less"
.info {
  width: 100px;
  height: 400px;
  background-color: skyblue;
  margin: 0 auto;
}
.slideDown-enter-active,
.slideDown-leave-active {
  transition: all 0.5s ease-in-out;
}
.slideDown-enter-from {
  height: 0;
}
.slideDown-leave-to {
  height: 0;
}
/style

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