body {
  font-family: Arial, sans-serif;
  margin: 20px;
  background: #f5f5f5;
}
h1 {
  text-align: center;
}
.rate-box {
  background: #fff;
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 0 6px rgba(0,0,0,0.1);
}