Use vue2+elementui for hover prompts

<template>
  <div class="hello">
<!-- <el-tooltip placement="top"> -->

    <!-- <div slot="content">External 1<br />External 2</div> -->
    <ol class="list-wrap" @mouseover.stop="mouseover" @mouseout.stop="mouseout">
      <li v-for="site in sites"
          :key="site.id">
        <el-tooltip placement="top">
          <div slot="content">Multiple lines of information<br />Second line of information</div>
          <span>span</span>
        </el-tooltip>
      </li>
    </ol>
    <div v-if="isShow">ol's prompt information</div>
     <!-- </el-tooltip> -->
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data () {
    return {
      isShow: false,
      sites: [
        { id: 'sfdsfsd', name: 'Runoob' },
        { id: 'sfdsfdfdsd', name: 'Google' },
        { id: 'sfdssdffsd', name: 'Taobao' }
      ],
      msg: 'Welcome to Your Vue.js App'
    }
  },
  methods: {
    mouseover (e) {
      if (e.target.tagName === 'OL') {
        this.isShow = true
        console.log('enter', e.target.tagName)
      }
    },
    mouseout (e) {
      if (e.target.tagName === 'OL') {
        console.log('leave', e.target.tagName)
        this.isShow = false
      }
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
.list-wrap{
  background-color: #42b983;
}
h1,
h2 {
  font-weight: normal;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>