JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tempusdominus-bootstrap-4/5.0.0-alpha18/js/tempusdominus-bootstrap-4.min.js"></script>
<<!DOCTYPE html>
  <!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
  <!--[if IE 7]>         <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
  <!--[if IE 8]>         <html class="no-js lt-ie9"> <![endif]-->
  <!--[if gt IE 8]><!-->
  <html class="no-js">
  <!--<![endif]-->

  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title></title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

    <!-- jQuery library -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

    <!-- Latest compiled JavaScript -->
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"></script>
  </head>

  <body>
    <!--[if lt IE 7]>
      <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="#">upgrade your browser</a> to improve your experience.</p>
    <![endif]-->


    <div class="container-fluid">

      <div class="container-fluid">
        <div class="row">
          <div class="col-xs-12  col-sm-9 col-md-9 col-lg-9 col-xl-12" style="background-color: red">
          abc</div>
          <div class="col-xs-12 col-sm-3 col-md-3 col-lg-3 col-xl-12" style="background-color: blue">
          def</div>
        </div>
      </div>
    </div>
    <script src="" async defer></script>
  </body>

  </html>