JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" lang="fr">
    <head>
    <style>
    div.contenant {
    background-color: red;
    padding-bottom: 0px;

        position:absolute
    }
    p.contenu
    {
    background-color:yellow;
    margin: 20px;
    }
    </style>
    </head>
    <body>
    <div class="contenant">tt
    <p class="contenu">This is a paragraph with specified margins.</p>
    </div>
    </body>
    </html>