manifest.json

{
  "name": "Yemeksepeti Webgüvercin Printable",
  "description": "Injects printable css into webguvercin webpage in order to print order trough thermal printer",
  "version": "1.0",
  "permissions": ["activeTab"],
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": ["https://siparistakip.yemeksepeti.com/*"],
      "css": ["print.css"] 
    }
  ]
}

print.css

@media print {

  body {
    margin: 0 !important;
    padding: 0 !important;
    font-weight: bold;
    color: black;
  }

  table.order-detail-table tbody tr td {
    font-size: 15px !important;
  }

  table.order-detail-table thead th:nth-child(4) {
    display: none;
  }

  
  table.order-detail-table tbody td:nth-child(4) {
    display: none;
  }

  table.order-detail-table tbody tr:last-child td {
    font-size: 20px !important;
  }

  .order-list-table {
    margin: 0 !important;
    padding: 0 !important;
  }

  div.row {
    padding: 0 !important;
    margin: 0 !important;
  }

  div[class^=col-] {
    margin: 0 !important;
    padding: 0 !important;
  }

  .container {
    padding: 0 !important;
    margin: 0 !important;
  }

  .alert,
  .cookie-alert,
  .page-header-top,
  .last-signal,
  .restaurant-container,
  .page-footer,
  .page-header,
  .restaurant-control {
    display: none !important;
  }
}