body {
  font-family: Arial;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
}

header {
  background: black;
  color: white;
  text-align: center;
  padding: 20px;
}

.products {
  display: flex;
  gap: 20px;
  padding: 20px;
  justify-content: center;
}

.card {
  background: white;
  padding: 10px;
  width: 200px;
  text-align: center;
  border-radius: 10px;
}

.cart, .checkout {
  padding: 20px;
  background: white;
  margin: 20px;
}

button {
  background: black;
  color: white;
  padding: 10px;
  border: none;
  cursor: pointer;
}