JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
    <nav class="navbar navbar-default navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <!-- Change topmenu to button -->
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <!-- Logo -->
                <a class="navbar-brand" href="#">LOGO</a>
            </div>
            <div class="navbar-collapse collapse">
                <div class="container">
                </div>
                <ul class="nav navbar-nav navbar-right">
                    <li><a href="#forside">Forside</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Musik <span class="caret"></span></a>
                        <ul class="dropdown-menu" role="menu">
                            <li><a href="#genre1">Genre1</a></li>
                            <li><a href="#genre2">Genre2</a></li>
                            <li><a href="#genre3">Genre3</a></li>
                        </ul>
                    </li>
                    <li><a href="#omos">Om os</a></li>
                    <li><a href="#blog">Blog</a></li>
                    <li class="active"><a href="#kontakt">Kontakt</a></li>
                </ul>
            </div><!--/.nav-collapse -->
        </div>
    </nav>
    <!-- Navigation -->
        
    <!-- Indledning
    ================================================== -->
    <div class="introbox">
        <div class="container" id="intro">
            <h1>Skal...

CSS

.navbar {
    background: #f00;
}
.introbox {
    background: #0f0;
}
footer {
    background: #00f;
}

JavaScript

$(document).ready(function () {
    $(window).load(function () {
        var oldSSB = $.fn.modal.Constructor.prototype.setScrollbar;
        $.fn.modal.Constructor.prototype.setScrollbar = function () {
            oldSSB.apply(this);
            if (this.bodyIsOverflowing && this.scrollbarWidth) {
                $('.navbar-fixed-top, .navbar-fixed-bottom').css('padding-right', this.scrollbarWidth);
            }
        }

        var oldRSB = $.fn.modal.Constructor.prototype.resetScrollbar;
        $.fn.modal.Constructor.prototype.resetScrollbar = function () {
            oldRSB.apply(this);
            $('.navbar-fixed-top, .navbar-fixed-bottom').css('padding-right', '');
        }
    });
});