body {
  background-color: #f5f5f5;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  padding: 50px;
}

.container {
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
  display: inline-block;
}

h1 {
  color: #4caf50;
}

img {
  margin-top: 20px;
  border-radius: 10px;
}