<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="style1.css" />
  </head>
  <body>
    <button id="signInButton">sign in</button>
    <button id="signOutButton">sign out</button>
    <div id="message">
      <p>you have sign in as <span id="userName">  </span> With the email <span id="userEmail"></span></p>

    </div>

    <script type="module">
   