JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Full Width Header/Footer Example 2</title>
<style type="text/css">
/*CSS RESET*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    font-weight: inherit;
    font-style: inherit;
    font-size: 100%;
    vertical-align: baseline;
}
/* remember to define focus styles! */
:focus {
    outline: 0;
}
body {
    line-height: 1;
    color: black;
    background: white;
}
ol, ul {
    list-style: none;
}
/* tables still need 'cellspacing="0"' in the markup */
table {
    border-collapse: separate;
    border-spacing: 0;
}
caption, th, td {
    text-align: left;
    font-weight: normal;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: "";
}
blockquote, q {
    quotes: "" "";
}

strong {
    font-weight:bold;color:#0289ce;
}

em {
    font-style:oblique;
}

p {
    margin:15px 0;
}

.aligncenter, div.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.alignleft {
    float: left;
}
.alignright {
    float: right;
}

h1 {font-size:180%;}
h2 {font-size:150%;}
h3 {font-size:125%;}
h4 {font-size:100%;}
h5 {font-size:90%;}
h6 {font-size:80%;}

a:link {color:#0289ce;}
a:hover {color:#f64274;}

/*End RESET - Begin Full Width CSS*/
    html, body {
        height: 100%;
    }
    
    #container {
        overflow: auto;
        min-height: 100%;
        height: 100%;
    }
    
    body {
        background:#FFFFBF;
        color:#2D1F16;
   ...