plc_control/web/ops/html/topbar.html

<header class="topbar">
  <div class="title">运转系统</div>
  <div class="topbar-actions">
    <div class="status" id="statusText">
      <span class="ws-dot" id="wsDot"></span>
      <span id="wsLabel">连接中…</span>
    </div>
  </div>
</header>