JSFiddle - React, Tailwind, and code Playground
HTML
<ul class="fmlnav">
<li>1</li>
<li>2</li>
<li class="fmlactive">3
<ul>
<li>Child 1
<ul>
<li>Child 1</li>
<li>Child 2</li>
<li>Child 3</li>
</ul>
</li>
</ul>
</li>
<li>4</li>
<li>5</li>
</ul>
CSS
ul {
margin-left: 30px;
list-style: disc;
}
JavaScript
var currentnav = $("li.fmlactive").html();
$("li.fmlactive").remove();
$(".fmlnav").prepend('<li class="fmlactive priority">' + currentnav + '</li>');