<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>YAMADA</title>
  <style>
    html, body, .main {
      height: 100%; 
      margin: 0;
      overflow: hidden;
      -webkit-app-region: drag;
    }
    body:hover {
      background: rgba(0, 0, 0, .1);
    }
    h1 {
      text-align: center;
    }
    img:focus {
      outline:none;
    }
  </style>
<body>
  <div class="main">
    <img src="./yamada.png">
    <h1>Loding...</h1>
  </div>
  <script src="./index.js"></script>
</body>
</html>

<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>YAMADA</title>
  <style>
    html, body, .main {
      height: 100%; 
      margin: 0;
      overflow: hidden;
      -webkit-app-region: drag;
    }
    body:hover {
      background: rgba(0, 0, 0, .1);
    }
    img {
      border-radius: 5px;
    }
    h1 {
      text-align: center;
    }
    img:focus {
      outline:none;
    }
  </style>
<body>
  <div class="main">
    <img src="./yamada.png">
    <h1>Loding...</h1>
  </div>
  <script src="./index.js"></script>
</body>
</html>

Adjust the img border to the window border
Adjust the img border to the window border
