<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Client app for Remote Config server function with Vertex AI and App Check</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      background-color: #f2f2f2;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 70px;
    }

    h1 {
      margin-bottom: 20px;
    }

    .container {
      background-color: 