JSFiddle - React, Tailwind, and code Playground
HTML
<div id="foo" class="menu" style="border: solid 1px green" >foo
<p>
contenu de foo</p></div>
<div id="bar" class="menu" style="border: solid 1px red" >bar
<p>
contenu de foo</p></div>
<div id="toc" class="menu" style="border: solid 1px red" >toc
<p>
contenu de foo</p></div>
CSS
p { display:none ;}
JavaScript
$('.menu').click(function(){
$('.menu p').hide('fast');
$(this).find('p').show('slow');
})