Vue Js Toast Notification

<!DOCTYPE html>
<html lang="en">
<head>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
  <div id="app">
    <h3>Vue Js Toast Notification</h3>
    <div v-if="show" class="toast">
      <span>{{ message }}</span>
      <button class="close-button" @click="hideToast">×</button>
    </div>
  </div>

});
  </script>
  <style scoped>
    .toast {
      position: fixed;
      bottom: 20px;
      left: 20px;
      background-color: #333;
      color: #fff;
      padding: 10px;
      border-radius: 4px;
      display: flex;    
      align-items: center;
      transition: opacity 0.3s ease-in-out;
    }

.close-button {
      margin-left: 10px;
      border: none;
      background: transparent;
      color: #fff;
      font-size: 16px;
      cursor: pointer;
    }
  </style>
</body>

</html>