PC端：

<template>
  <div class="fixed_main">
    <div class="fixed_main_box">
      <div class="fixed_main_box-container" :style="{'width':boxWidth}">
        <div class="fixed_main_box-title">
          <slot name="title"/>
        </div>
        <div class="fixed_main_box-content">
          <div class="box_content">
            <slot/>
          </div>
        </div>
      </div>
      <div class="fixed_main_grayBg" @click="closeBox"></div>
    </div>
  </div>
</template>

<script>
export default {
  name: "ReDialog",
  props: {
    boxWidth: {
      type: String
    }
  },
  methods: {
    closeBox() {
      this.$emit('close')
    }
  }
}
</script>

<style scoped>
.fixed_main {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
}
.fixed_main_box {
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
}
.fixed_main_box,
.fixed_main_grayBg {
  height: 100%;
  width: 100%;
  position: absolute;
  left: 0;
  top: 0;
}
.fixed_main_grayBg {
  background: grey;
  opacity: .2;
  z-index: -1;
}
.fixed_main_box-container {
  background: #fff;
  border-radius: 5px;
  overflow: auto;
}
.fixed_main_box-title {
  background: #fff;
  color: #999;
  text-align: left;
  padding-left: 10px;
  min-height: 40px;
  font-size: 16px;
  line-height: 40px;
  border-bottom: 1px solid #e6e6e6;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
  position: relative;
}
.fixed_main_box-content .box_content {
  height: auto;
  padding: 20px 0 20px;
}
</style>

移动端：

<template>
    <div class='popup_container'>
        <div class='popup_gray_bg' @click='doClose'></div>
        <div class='popup_main'>
            <div class='popup_title'>
                <div class='popup_title_text' v-if='msg.title' :style='`text-align:${msg.align||"left"}`'>
                    <span >{{msg.title}}</span>
                    <div class='popub_close' v-if='msg.close' @click='doClose'>
                        <i class='el-icon-close '></i>
                    </div>
                </div>
            </div>
            <div class='popup_content'>
                <slot></slot>
            </div>
            <div class='popup_btn_group'>
                <div @click='doSure' v-if='!msg.btngroup || msg.btngroup.sure' class='popup_btn_sure' :class='{popup_btn_border:!msg.btngroup || msg.btngroup.close}'>
                    <span>{{msg.btngroup && typeof msg.btngroup.sure == 'string' ? msg.btngroup.sure:'确认'}}</span>
                </div>
                <div @click='doClose' v-if='!msg.btngroup || msg.btngroup.close' class='popup_btn_close'>
                    <span>{{msg.btngroup &&  typeof msg.btngroup.close == 'string'? msg.btngroup.close:'取消'}}</span>
                </div>
            </div>
        </div>
    </div>
</template>a
<script>
export default {
    name:'popup',
    props:{
        msg:{
            type:Object,
            default:()=>{
                return {
                    title:'',
                    content:''
                }
            }
        }
    },
    methods:{
        doClose(){
            this.$emit('doClose')
        },
        doSure(){
            this.$emit('doSure')
        }
    }
}
</script>
<style>
.popup_container{
    height:100%;
    width:100%;
    position:absolute;
    left:0;
    top:0;
    z-index:200;
    display: flex;
    align-items: center;
    justify-content: center;
}
.popup_gray_bg{
    height:100%;
    width:100%;
    background:#999;
    opacity: .5;
    position: absolute;
    top:0;
    left:0;
}
.popup_main{
    position: relative;
    z-index:1;
    width:80vw;
    padding:4.93vw 4.93vw 0;
    background:#fff;
    border-radius:2vw;
}
.popup_title{
    width:100%;
    font-size:4vw;
    font-weight: 600;
    color:#911C61;
    /* color:#666; */
    /* padding-bottom: 4vw; */
}
.popup_title_text{
    position: relative;
    text-align: center;
}
.popub_close{
    position: absolute;
    right:0;
    top:0;
    height:100%;
    width:4vw;
}
.popup_content{
    /* min-height:35.2vw; */
    font-size:4.53vw;
    color:#000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}
.popup_btn_group{
    height:13.86vw;
    display: flex;;
    border-top:0.13vw solid #e6e6e6;
    font-weight: 600;
    font-weight: 4.26vw;
}
.popup_btn_sure>span{
    display: inline-block;
    width:100%;
    text-align: center;
}
.popup_btn_border{
    border-right:0.13vw solid #e6e6e6;
}
.popup_btn_sure{
    color:#911C61;
}
.popup_btn_group div{
    flex:1 0 0 ;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size:4.26vw;
}
</style>