.invoice{font-family:Arial,sans-serif;width:1100px;margin:auto;border:1px solid #ccc;padding:20px;-webkit-box-sizing:border-box;box-sizing:border-box}.header-dianzi{text-align:center;margin-bottom:20px}.info-table{width:100%;border-collapse:collapse;margin-bottom:20px}.info-table td,.info-table th{border:1px solid #999;padding:8px;text-align:left}.items-table{width:100%;border-collapse:collapse;margin-bottom:20px}.items-table td,.items-table th{border:1px solid #999;padding:8px;text-align:left}.footer{text-align:left}