JSFiddle - React, Tailwind, and code Playground

HTML

/*
Theme Name: Bewustsite
Description: Wordpress theme voor Bewustsite.nl
Version: 0.1
Author: Picoba Webdesign
Author URI: http://www.picoba.nl
*/
@import url('reset.css');

@font-face {
     font-family: 'Museo-300';
     src: url('webfonts/23D6D1_0_0.eot');
     src: url('webfonts/23D6D1_0_0.eot?#iefix') format('embedded-opentype'),
          url('webfonts/23D6D1_0_0.woff') format('woff'),
          url('webfonts/23D6D1_0_0.ttf') format('truetype'),
          url('webfonts/23D6D1_0_0.svg#wf') format('svg');
    font-weight: normal;
    font-style: normal;
}
  
 @font-face {
     font-family: 'Museo-500';
     src: url('webfonts/23D6D1_1_0.eot');
     src: url('webfonts/23D6D1_1_0.eot?#iefix') format('embedded-opentype'),
          url('webfonts/23D6D1_1_0.woff') format('woff'),
           url('webfonts/23D6D1_1_0.ttf') format('truetype'),
          url('webfonts/23D6D1_1_0.svg#wf') format('svg');
    font-weight: normal;
    font-style: normal;
}
  
 @font-face {
     font-family: 'MuseoSans-300';
     src: url('webfonts/23D6D1_2_0.eot');
     src: url('webfonts/23D6D1_2_0.eot?#iefix') format('embedded-opentype'),
          url('webfonts/23D6D1_2_0.woff') format('woff'),
          url('webfonts/23D6D1_2_0.ttf') format('truetype'),
          url('webfonts/23D6D1_2_0.svg#wf') format('svg');
}

::-moz-selection { background: #9fdd35; color: #fff; text-shadow: none; }
::selection { background: #9fdd35; color: #fff; text-shadow: none; }

body {
    background-color: #eae9e9;
    color: #383734;
    font-family: "MuseoSans-300", Georgia;
    line-height: 1.5em; /* 24 / 16 */
}

h1,h2,h3,h4 {
    font-family: "Museo-300", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

h2{
    border-bottom: 7px solid rgba(125, 106, 129, .1);
    border-top: 7px solid rgba(125, 106, 129, .1);
    font-size: 1.875em; /* 30 / 16 */
    line-height: 1.33333333em; /* 32 / 16 */
    padding: 1.5em 0;
    text-shadow: 1px 1px 0 #ffffff;
}

h3 {
    border-bottom: 7px solid rgba(125,...