body {
  font-family: Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.user-list {
  margin: 20px 0;
}

.user-card {
  border: 1px solid #ddd;
  padding: 10px;
  margin: 10px 0;
  border-radius: 4px;
}

.form-group {
  margin: 10px 0;
}

input {
  padding: 5px;
  width: 200px;
}

button {
  padding: 5px 10px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}