Vue Js Open URL as Modal Popup with Overlay

<!DOCTYPE html>
<html>

</head>

<body>
  <div id="app">
    <h3>Vue Js Open URL as Modal Popup with Overlay</h3>
    <button class="open-button" @click="openModal">Open Modal</button>
    <div class="modal-overlay" v-if="isOpen" @click.self="closeModal">
      <div class="modal">
        <iframe :src="url" frameborder="0"></iframe>
        <button class="close-button" @click="closeModal">X</button>
      </div>
    </div>
  </div>

app.mount('#app');
  </script>
  <style>
    #app {
      text-align: center;
    }

.modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.5);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
    }

.modal {
      background-color: #fff;
      padding: 20px;
      border-radius: 5px;
      position: relative;
      width: 100%;
      max-width: 800px;
    }

.modal iframe {
      width: 100%;
      height: 400px;
      border: none;
    }

.open-button {
      background-color: #4CAF50;
      color: white;
      padding: 10px 20px;
      border: none;
      border-radius: 4px;
      transition: background-color 0.3s;
      cursor: pointer;
    }

.open-button:hover {
      background-color: #45a049;
    }

.modal button {
      position: absolute;
      top: 10px;
      right: 10px;
      background-color: #ddd;
      border: none;
      padding: 8px 12px;
      border-radius: 50%;
      cursor: pointer;
    }

/* Button hover effect */
    .modal button:hover {
      background-color: #ccc;
    }
  </style>

</body>

</html>