JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//unpkg.com/vue/dist/vue.js"></script>
<script src="//unpkg.com/element-ui@2.0.4/lib/index.js"></script>
<div id="app">
<el-tabs type="border-card" v-model="activeName" >
  <el-tab-pane id="tab-0" name="first" label="Route"> Route </el-tab-pane>
  <el-tab-pane id="tab-1" name="second"  label="Config">Config</el-tab-pane>
  <el-tab-pane id="tab-2" name="third" label="Role">Role</el-tab-pane>
  <el-tab-pane id="tab-3" name="fourth" label="Task">Task</el-tab-pane>
</el-tabs>
</div>

SCSS

@import url("//unpkg.com/element-ui@2.0.4/lib/theme-chalk/index.css");

Babel + JSX

var Main = {
    data() {
      return {
        activeName: 'second'
      };
    },
    methods: {
      handleClick(tab, event) {
        console.log(tab, event);
      }
    }
  };
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')