body{font-family:sans-serif;margin:20px}.cash-register,.product-list{border:1px solid #ccc;padding:20px}.product-item{display:flex;align-items:center;margin-bottom:10px}.product-item img{width:50px;height:50px;margin-right:10px}.receipt{margin-top:20px;border-top:1px solid #ccc;padding-top:20px}.total{font-weight:700;margin-top:10px}.buttons{margin-top:20px}.buttons button{margin-right:10px}