JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li><a href="#">About</a>
<li><a href="#">Home</a>
CSS
ul { list-style: none; }
ul li a:hover { color: red; text: 'Content'; }
JavaScript
$('li a').hover(function(){
$(this).data('text', $(this).text()).text('Content');
}, function(){
$(this).text($(this).data('text'));
});