JSFiddle - React, Tailwind, and code Playground

by Prasad

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<nav class="navbar navbar-inverse navbar-fixed-top">
  <div class="container-fluid">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">WebSiteName</a>
    </div>
    <div>
      <div class="collapse navbar-collapse" id="myNavbar">
        <ul class="nav navbar-nav">
          <li><a href="#section1">Section 1</a></li>
          <li><a href="#section2">Section 2</a></li>
          <li><a href="#section3">Section 3</a></li>
          <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" href="#section4">Section 4</a>            
          </li>
        </ul>
      </div>
    </div>
  </div>
</nav>

<div id="section1" class="container-fluid">
  <h1>Section 1</h1>
  <p>Click on the different Section links in the navbar to see the smooth scrolling effect.</p>
</div>
<div id="section2" class="container-fluid">
  <h1>Section 2</h1>
  <p>Click on the different Section links in the navbar to see the smooth scrolling effect.</p>
</div>
<div id="section3" class="container-fluid">
  <h1>Section 3</h1>
  <p>Click on the different Section links in the navbar to see the smooth scrolling effect.</p>
</div>
<div id="section4" class="container-fluid">
  <h1>Section 4 Submenu 1</h1>
  <p>Click on the different Section links in the navbar to see the smooth scrolling effect.</p>
</div>

CSS

body {
      position: relative;
  }
  #section1 {padding-top:50px;height:500px;color: #fff; background-color: #1E88E5;}
  #section2 {padding-top:50px;height:500px;color: #fff; background-color: #673ab7;}
  #section3 {padding-top:50px;height:500px;color: #fff; background-color: #ff9800;}
  #section41 {padding-top:50px;height:500px;color: #fff; background-color: #00bcd4;}

JavaScript

$(document).ready(function(){
  // Add scrollspy to <body>
  $('body').scrollspy({target: ".navbar", offset: 50});

  // Add smooth scrolling on all links inside the navbar
  $("#myNavbar a").on('click', function(event) {
    // Make sure this.hash has a value before overriding default behavior
    if (this.hash !== "") {
      // Prevent default anchor click behavior
      event.preventDefault();

      // Store hash
      var hash = this.hash;

      // Using jQuery's animate() method to add smooth page scroll
      // The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
      $('html, body').animate({
        scrollTop: $(hash).offset().top
      }, 800, function(){
   
        // Add hash (#) to URL when done scrolling (default click behavior)
        window.location.hash = hash;
      });
    }  // End if
  });

  $(window).on('scroll',function(){
  	var hash = $('#myNavbar').find('li.active a').attr('href');
  	console.log("hash: "+hash);
  	window.location.hash = hash;
  });
});