Vue js add multiple classes

<html>
<head>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <h3>Vue Class Binding Array</h3>
        <div :class="[activeClass, errorClass]">
            <p>Font Awesome icons</p>
        </div>
    </div>
    <script type="module">
        const app = new Vue({
            el: "#app",
            data() {
                return {
                    activeClass: 'active',
                    errorClass: 'text-danger'
                }
            }

});
    </script>
    <style scoped>
        #app {
            font-family: Arial, sans-serif;
            max-width: 600px;
            margin: 0 auto;
            background-color: #f1f1f1;
            padding: 20px;
            border: 1px solid #ccc;
        }

.active {
            background-color: #007bff;
            color: #fff;
            border-radius: 5px;
            padding: 8px 12px;
            text-transform: uppercase;
            font-weight: bold;
        }

.text-danger {
            color: yellow;
            font-size: 16px;
            font-weight: bold;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
            letter-spacing: 0.5px;
        }
    </style>
</body>
</html>