如何让Quasar QDialog在手机上全屏？

<template>
  <div>
    <q-btn @click="showDialog">打开对话框</q-btn>
    <q-dialog v-model="dialogVisible" fullscreen>
      <q-card>
        <q-card-section>
          对话框内容
        </q-card-section>
      </q-card>
    </q-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      dialogVisible: false
    };
  },
  methods: {
    showDialog() {
      this.dialogVisible = true;
    }
  }
};
</script>