JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
<div id="MSO_ContentDiv">
    <ul id="menu">
      <li><a href="#">Item 1</a></li>
      <li><a href="#">Item 2</a></li>
      <li><a href="#">Item 3</a>
        <ul>
          <li><a href="#">Item 3-1</a></li>
          <li><a href="#">Item 3-2</a></li>
          <li><a href="#">Item 3-3</a></li>
          <li><a href="#">Item 3-4</a></li>
          <li><a href="#">Item 3-5</a></li>
        </ul>
      </li>
      <li><a href="#">Item 4</a></li>
      <li><a href="#">Item 5</a></li>
    </ul>
</div>
</DIV>

CSS

.site-alert-text {
    color: #1570A6;
}

JavaScript

$("#divmenu").before("<span class='site-alert-text'>Welcome to  Portal</span>");

$("#wrapper").before( "<div id='hello'>Welcome to my testing fiddle by AGBC</div>");