JSFiddle - React, Tailwind, and code Playground
HTML
<div id="cssmenu"><a href="#" id="aboutlink">About</a></div><div id="aboutcontainer">djdsidjkjd<br><br></div><div id="goback">Go back</div>
JavaScript
$('#aboutcontainer').hide();
$('#goback').hide();
function menuclick(menuitem, menucontent) {
$('#' + menuitem).click(function() {
$('#cssmenu').hide();
$('#' + menucontent).show();
$('#goback').show();
})
};
menuclick('aboutlink', 'aboutcontainer');