Vue Js Trigger/Open Input file onclick button

<!DOCTYPE html>
<html>

<body>
  <div id="app">
    <h3>Vue Js Trigger/open input file on click button</h3>
    <input ref="fileInput" type="file" style="display: none;" @change="handleFileChange">
    <button @click="openFileInput">Open File</button>
  </div>

app.mount('#app');
  </script>

button {
      padding: 10px 20px;
      background-color: #007bff;
      color: #fff;
      border: none;
      border-radius: 4px;
      cursor: pointer;
    }

button:hover {
      background-color: #0056b3;
    }

button:active {
      background-color: #003e80;
    }
  </style>
</body>

</html>