<template> <main id="app"> <h1 class="title">Hello, World!</h1> <button @click="incrementCounter">Count: {{ counter }}</button> </main> </template> <script> export default { data() { return { counter: 0, }; }, methods: { incrementCounter() { this.counter++; }, }, }; </script> <style> #app { padding: 10px; } .title { color: #5C6AC4; } </style>