body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.form-group {
  margin-bottom: 10px;
}

label {
  display: block;
  margin-bottom: 5px;
}

input[type="text"],
input[type="number"] {
  padding: 5px;
  border: 1px solid #ccc;
  border-radius: 3px;
  width: 100%;
  box-sizing: border-box;
  font-size: 16px;
  margin-bottom: 10px;
}

button {
  background-color: #4CAF50;
  color: #fff;
  padding: 10px 20px;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background-color: #3e8e41;
}

.buttons {
  margin-top: 20px;
  text-align: center;
}