JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/1.0.11/vue.min.js"></script>
<div id="app">
  <div id="test" v-on:click="testFunction">Test</div>
</div>

JavaScript

new Vue({
  el: "#app",
  methods: {  
    testFunction : function(event) {
        $(event.target).css('background-color', 'green');
    }
  }
});