rules.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Rules</title>
    <link rel="stylesheet" href="./css/style.css" />
    <style>
      body {
        display: grid;
        place-content: center;
        background: hsl(189, 59, 53);
      }
      img {
        width: 25rem;
        height: auto;
        margin: 3rem;
        border: 3px solid #ccc;
        padding: 3rem;
        border-radius: 30px;
        resize: none;
      }
    </style>
  </head>
  <body>
    <img src="./images/image-rules.svg" alt="Rules" />
    <div class="rules">
      <a href="" onclick="closePopupRules()">Close</a>
    </div>

    <script src="./js/main.js"></script>
  </body>
</html>