1<template>
2 <div class="box"></div>
3</template>
4
5<script lang="ts" setup>
6import { ref } from 'vue'
7
8const ys = ref('#ffd100')
9</script>
10
11<style scoped>
12.box {
13 width: 500px;
14 height: 500px;
15 background-color: v-bind(ys);
16}
17</style>
