【静态】Popup(弹出蒙层)

<template>
  <div>
    <button @click="dianji" v-if="cba">关闭</button>
    <button @click="dianji" v-else>展开</button>
    <div @click="dianji">
      <div v-show="cba" class="but">
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
        <button class="btn">福田</button>
      </div>
    </div>
    <div @click="dianji" :class="{menc:abc===cba}"></div>
  </div>
</template>

<script>
import Footer from "@/components/Footer2.vue";
export default {
  data() {
    return {
      //接受判断条件
      abc: true,
      //进行判断
      cba: true
    };
  },
  components: {
    Footer
  },
  methods: {
    dianji() {
      this.cba = !this.cba;
    }
  }
};
</script>

<style scoped>
.menc {
  background: #000;
  opacity: 0.1;
  width: 100%;
  height: 100%;
  position: fixed;
  z-index: 1;
}
.but {
  box-sizing: border-box;
  width: 100%;
  position: fixed;
  z-index: 2;
  padding-left: 10px;
  padding-top: 10px;
  background: white;
}
.btn {
  box-sizing: border-box;
  border: none;
  border: 1px solid #dddbd2;
  background: white;
  color: #96948d;
  width: 80px;
  font-size: 10px;
  height: 30px;
  margin-right: 10px;
  margin-bottom: 10px;
}
</style>