body {
  font-family: Arial;
  background: #f4f6f8;
}

.header {
  background: #0b5ed7;
  color: white;
  padding: 15px;
  text-align: center;
}

.container {
  padding: 20px;
}

.card {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 8px;
}