Highlight any menu item using label

Copy the unique class of li and then apply the css below:

.menu-item-9356::after {
      content: "Real" !important;
      background: red;
      margin-bottom: 27px;
      margin-left: -20px;
      padding: 1px 5px;
      color: white;
      font-size: 8px;
      border: none !important;
      border-radius: 5px;
  }