chromium/chrome/browser/resources/suggest_internals/request.html

<style include="cr-shared-style">
  :host {
    background-color: var(--cr-card-background-color);
    border-radius: var(--cr-card-border-radius);
    box-shadow: var(--cr-card-shadow);
    display: block;
    margin: calc(var(--cr-section-padding) / 2);
    overflow: hidden;
  }

  .cr-row {
    padding: calc(var(--cr-section-padding) / 2) var(--cr-section-padding);
  }

  .label:not(:first-child) {
    margin-inline-start: var(--cr-icon-button-margin-start);
  }

  .status {
    --iron-icon-fill-color: var(--google-grey-700);
    --iron-icon-height: 20px;
    --iron-icon-width: 20px;
  }

  @media (prefers-color-scheme: dark) {
    .status {
      --iron-icon-fill-color: var(--google-grey-500);
    }
  }

  .content {
    flex-grow: 1;
    overflow: auto;
    white-space: pre;
  }

  .actions {
    align-self: flex-start;
    display: flex;
    flex-direction: column;
  }
</style>
<cr-expand-button class="cr-row first" expanded="{{request.expanded}}">
  <span class="label">[[getTimestamp_(request.startTime)]]</span>
  <cr-icon class="label status" icon="[[getStatusIcon_(request.status)]]"
      title="[[getStatusTitle_(request.endTime)]]">
  </cr-icon>
  <span class="label">[[getRequestPath_(request)]]</span>
</cr-expand-button>
<cr-collapse opened="[[request.expanded]]">
  <div class="cr-row" hidden$="[[!requestDataJson_]]">
    <div class="content"
        inner-h-t-m-l="[[getRequestDataHtml_(requestDataJson_)]]">
    </div>
    <div class="actions">
      <cr-icon-button class="icon-copy-content" title="copy to clipboard"
          on-click="onCopyRequestClick_">
      </cr-icon-button>
      <cr-icon-button class="icon-visibility" title="view content"
          on-click="onViewRequestClick_">
      </cr-icon-button>
    </div>
  </div>
  <div class="cr-row" hidden$="[[!responseJson_]]">
    <div class="content" inner-h-t-m-l="[[getResponseHtml_(responseJson_)]]">
    </div>
    <div class="actions">
      <cr-icon-button class="icon-copy-content" title="copy to clipboard"
          on-click="onCopyResponseClick_">
      </cr-icon-button>
      <cr-icon-button class="icon-visibility" title="view content"
          on-click="onViewResponseClick_">
      </cr-icon-button>
      <cr-icon-button iron-icon="suggest:lock" title="hardcode response"
          on-click="onHardcodeResponseClick_">
      </cr-icon-button>
    </div>
  </div>
</cr-collapse>