<template>
    <div class="xn-container">
        <button class="error" @click="showVuePopup(true)">点我</button>
        <div class="vue-popup">
            <div class="mask" v-show="show" @click="showVuePopup(false)"></div>
            <transition name="slide">
                <div class="popup-content" v-show="show" >
                    <p>点击阴影区域可以关闭</p>
                    <p @click="showVuePopup(false)">点击我也可以关闭哟</p>
                </div>
            </transition>
        </div>
    </div>
</template>
<script>
export default {
  name: 'Test',
  data () {
    return {
      show: false
    }
  },
  methods: {
    showVuePopup (flag) {
      this.show = flag
    }
  }
}
</script>

<style lang="stylus" scoped>
.xn-container {
    height: 100%;
}
button {

    display: block;
    width: 300px;
    height: 44px;
    margin: 20px auto;
    border-radius: 4px;
    background-color: #3884ff;
    color: #fff;
}
.error{
    touch-action: none;
}

// 内容区
.vue-popup {
    .popup-content {
        touch-action: none;
        position: fixed;
        border-radius: 1rem 1rem 0 0
        height: 400px;
        bottom: 0;
        left: 0;
        width: 100%;
        background-color: #fff;
        -webkit-transition: all 0.2s ease-in;
        transition: all 0.2s ease-in;
        p {
            line-height: 30px;
            text-align: center;
        }
    }
}
// 阴影区
.mask {
    touch-action: none;
    position: fixed;
    width: 100%;
    right:0;
    left: 0;
    top: 0;
    bottom: 0;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    transition: all 0.2s ease-in;
}

.slide-enter-active {
    animation-name: slideInUp;
    animation-duration: 0.2s;
    animation-fill-mode: both;
}
.slide-leave-active {
    animation-name: slideOutDown;
    animation-duration: 0.2s;
    animation-fill-mode: both;
}
@keyframes slideInUp {
    0% {
        transform: translate3d(0, 100%, 0);
        visibility: visible;
    }

    to {
        transform: translateZ(0);
    }
}
@keyframes slideOutDown {
    0% {
        transform: translateZ(0);
    }

    to {
        visibility: hidden;
        transform: translate3d(0, 100%, 0);
    }
}

</style>

效果图：