message: Fix original navbar height
diff: @@ -31,6 +31,10 @@ li.nav-item[report-id="playpage_dynamic"] .i-frame,
  visibility: hidden !important;
  height: var(--navbar-height) !important;
  }
  +#message-navbar,
  +.z-top-container {
  + max-height: var(--navbar-height) !important;
  +}
  .link-top-container#tab-container {
  top: var(--navbar-height) !important;
  }
  