body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  header {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
  }
  
  main {
    padding: 2rem;
    display: flex;
    justify-content: space-between;
  }
  
  #cart-items {
    flex: 2;
  }
  
  #cart-summary {
    flex: 1;
    border: 1px solid #ddd;
    padding: 1rem;
    margin-left: 1rem;
  }
  
  .cart-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
  }
  
  .cart-item img {
    width: 100px;
    height: auto;
  }
  
  .cart-item-details {
    flex: 2;
    padding: 0 1rem;
  }
  
  .cart-item-actions button {
    margin: 0 0.5rem;
  }