lcp_breakdown_timings_css_background_images.html

<!DOCTYPE html>
<html>

<head>
  <title>LCP Breakdown Timings: Images Loaded As CSS Background</title>
  <style>
    div {
      background-image: url("/images/lcp-256x256.png");
      height: 100px;
      width: 80px;
    }
  </style>
  <script src="resources/util.js"></script>
</head>

<body>
  <div></div>
</body>

</html>

chromium/chrome/browser/page_load_metrics/integration_tests/data/lcp_breakdown_timings_css_background_images.html