JSFiddle - React, Tailwind, and code Playground

HTML

<body id="page-top" data-target=".navbar-fixed-top">
  
    <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
      <div class="container-fluid">
      
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
    </div>
      
       <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      
            <ul class="nav navbar-nav navbar-right">
              <li><a href="#group2">Home</a></li>
              <li><a href="#group3">About</a></li>
              <li><a href="#group5">Products</a></li>
              <li><a href="#group7">Contact</a></li>
            </ul>
      
        </div>  
      </div>
  </nav>


  <div class="parallax">

    <div id="group2" class="parallax__group">
      <div class="parallax__layer parallax__layer--back">
        <div class="title">START</div>
      </div>
    </div>
    <div id="group3" class="parallax__group">
      <div class="parallax__layer parallax__layer--base">
        <div class="title">ABOUT</div>
      </div>
    </div>
    <div id="group4" class="parallax__group">
      <div class="parallax__layer parallax__layer--deep">
        <div class="title">RANDOM PICTURE</div>
      </div>
    </div>
    <div id="group5" class="parallax__group">
      <div class="parallax__layer parallax__layer--base">
        <div class="title">PRODUCTS</div>
      </div>
    </div>
    <div id="group6" class="parallax__group">
      <div class="parallax__layer parallax__layer--back">
        <div class="title">RANDOM PICTURE</div>
      </div>
    </div>
    <div id="group7" class="parallax__group">
      <div class="parallax__layer parallax__layer--base">
        <div class="title">CONTACT</div>
      </div>
    </div>
 ...

CSS

.parallax {
    height: 500px; /* fallback for older browsers */
    height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-perspective: 300px;
    perspective: 300px;
  }

  .parallax__group {
    position: relative;
    height: 500px; /* fallback for older browsers */
    height: 100vh;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
  }

  .parallax__layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
  }

  .parallax__layer--fore {
    -webkit-transform: translateZ(90px) scale(.7);
    transform: translateZ(90px) scale(.7);
    z-index: 1;
  }

  .parallax__layer--base {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    z-index: 4;
  }

  .parallax__layer--back {
    -webkit-transform: translateZ(-300px) scale(2);
    transform: translateZ(-300px) scale(2);
    z-index: 3;
  }

  .parallax__layer--deep {
    -webkit-transform: translateZ(-600px) scale(3);
    transform: translateZ(-600px) scale(3);
    z-index: 2;
  }




  /* demo styles
  --------------------------------------------- */

  body, html {
    overflow: hidden;
  }

  body {
    font: 100% / 1.5 Arial;
  }

  * {
    margin:0;
    padding:0;
  }

  .parallax {
    font-size: 200%;
  }

   /* centre the content in the parallax layers */
  .title {
    text-align: center;
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
  }



  /* style the groups
  --------------------------------------------- */


  #group2 {
    z-index: 3; /* slide under groups 1 and 3 */
  }
  #group2 .parallax__layer--back {
    background-image:url('http://2.bp.blogspot.com/_RBWp1IAT0ZI/TPeaOKFEcAI/AAAAAAAABBc/2BzJE6r0CgI/s1600/black%black%252Band%252Bwhite%252Baspen%252Bforest%252Bwall%252Bink_bluesky.png');
    background-position: center;
  }

  #group3 {
    z-index: 4; /* slide over group 2 and 4 */
  }
  #group3...

JavaScript

$(function() {
          $('a[href*=#]:not([href=#])').click(function() {
            if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
              var target = $(this.hash);
              target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
              if (target.length) {
                $('.parallax').animate({
                  scrollTop: target.offset().top
                }, 2500);
                return false;
              }
            }
          });
        });

   $(document).ready(function () {
$(".navbar-nav li a").click(function(event) {
$(".navbar-collapse").collapse('hide');
});
});