Vue移动 HTML 元素到指定位置 teleport 标签

<!-- 将 teleport 中的内容移动到 body 标签中  -->
<teleport to="body">
    <div>
        <h3>我是第三层组件的标题</h3>
        <p>我是第三层组件的内容</p>
        <p>我是第三层组件的内容</p>
        <p>我是第三层组件的内容</p>
    </div>
</teleport>

<template>
  <div class="one">
    <h3>我是One组件（第一层）</h3>
    <hr />
    <Two></Two>
  </div>
</template>
 
<script>
import Two from '../components/Two';
export default {
  name: "One",
  components: { Two }
}
</script>

<template>
    <div class="two">
        <h3>我是Two组件（第二层）</h3>
        <hr />
        <Three></Three>
    </div>
</template>
 
<script>
import Three from "../components/Three.vue"
export default {
    name: "Two",
    components: { Three }
}
</script>

<template>
    <button @click="isShow = true">显示弹窗</button>
    <teleport to="body">
        <div class="mask" v-if="isShow">
            <div class="dialog">
                <h3>我是弹窗的标题</h3>
                <p>我是弹窗的内容</p>
                <p>我是弹窗的内容</p>
                <p>我是弹窗的内容</p>
                <button @click="isShow = false">关闭弹窗</button>
            </div>
        </div>
    </teleport>
</template>
 
<script>
import { ref } from 'vue'
export default {
    name: "Three",
    setup() {
        let isShow = ref(false);
        return { isShow }
    }
}
</script>
 
<style scoped>
.mask {
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
}
 
.dialog {
    width: 300px;
    padding: 20px;
    background-color: aqua;
    text-align: center;
}
</style>