JSFiddle - React, Tailwind, and code Playground

HTML

<body>

    <div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="#">Project name</a>
        </div>
        <div class="navbar-collapse collapse">
          <form class="navbar-form navbar-right" role="form">
            <div class="form-group">
              <input type="text" placeholder="Email" class="form-control">
            </div>
            <div class="form-group">
              <input type="password" placeholder="Password" class="form-control">
            </div>
            <button type="submit" class="btn btn-success">Sign in</button>
          </form>
        </div><!--/.navbar-collapse -->
      </div>
    </div>

    <!-- Main jumbotron for a primary marketing message or call to action -->
    <div class="jumbotron">
      <div class="container">
        <h1>Hello, world!</h1>
        <p>This is a template for a simple marketing or informational website. It includes a large callout called a jumbotron and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
        <p><a class="btn btn-primary btn-lg" role="button">Learn more &raquo;</a></p>
      </div>
    </div>

    <div class="container">
      <!-- Example row of columns -->
      <div class="row">
        <div class="col-md-4">
          <h2>Heading</h2>
          <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
         ...

CSS

.cookie{
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 5px 20px;
  width: 100%;
  height: 30px;

  color: #666;
  font-size: 0.8em;
  background-color: #F3F3F3;
  border-top: 1px solid #E5E5E5;
}
.cookie a{ text-decoration: underline; }
.cookie a:hover{ text-decoration: none; }
.cookie_btn{
  display: inline;
  margin-left: 15px;
  padding: 4px 18px;

  color: #FFF;

  background-color: #55AC66;
  border-radius: 3px;
}

JavaScript

(function($){
  if($.cookie('cookiebar')---undefined){
    $('body').append('<div class="cookie" id="cookie">En poursuivant votre navigation sur ce site, vous acceptez l\'utilisation de Cookies pour réaliser des statistiques de visites anonymes.<a href="#">En Savoir plus</a><div class="cookie_btn" id="cookie_btn">Ok</div></div>');}
})(jQuery);