chromium/chrome/browser/resources/connectors_internals/managed_client_certificate.html

<style>
  .bold {
    font-weight: bold;
  }

  div ~ div {
    margin-top: 5px;
  }

  #managed-identities {
    display: flex
  }

  #managed-identities > div {
    margin: 10px;
    padding: 5px;
    flex-shrink: 1;
    border: gray 1px solid;
  }

</style>
<h2>Managed Client Certificate</h2>
<div>
  Enabled Policy Levels: <span id="policy-enabled-levels" class="bold"></span>
</div>
<div>
  Managed Identities:
  <!-- Identity elements will be added dynamically. -->
  <div id="managed-identities"></div>
</div>