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Babel includes JSX processing.

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HTML

              
                <div class="app">

  <div class="app-header">
    <div class="app-header-back js-header-back hidden">
      <a href="#" class="js-back">&#8592; Back</a>
    </div>
    <div class="app-header-nav js-header-nav wide">
      <a href="#io">Io</a>
      <a href="#about">About</a>
      <a href="#blog">Blog</a>
      <a href="#contact">Contact</a>
    </div>
  </div>
  <div class="page-cover dsa"><div class="loader"></div></div>
  <div class="page-placeholder" id="page-placeholder"></div>
  
  
<script id="home-template" type="text/x-handlebars-template">
  <div class="entry">
    <h1>Hello + {{ name }}</h1>
    <h2>Tap on any image to navigate forward  <br></h2>
    <ul>
        {{#each images}}
        <li><a href="#{{href}}"><img src="{{src}}" alt="test" /></a></li>
        {{/each}}
    </ul>
  </div>
</script>

</div>
              
            
!

CSS

              
                * {
  box-sizing: border-box;
}

body {
  background:#333;
}

h1 {
  font-size:1.1em;
  text-align:center;
  font-weight:200;
}

h2 {
  font-size:.8em;
  text-align:center;
  font-weight:200;
}
.app {
  width:100vw;
  max-width:414px;
  margin:0 auto;
  height:100vh;
  overflow:hidden;
  position:relative;
  background:#fff;
  &-header {
    background:#eee;
    width:100vw;
      max-width:414px;
  margin:0 auto;
    position:fixed;
    z-index:5;
    box-shadow:1px 1px 1px rgba(#000, .2);
    &-back {
      width:25%;
      background:#ccc;
      float:left;
      transition: width .5s;
      &.hidden {
        width:0;
        overflow:hidden;
      }
      a {
        padding:12px 0;
        display:block;
        text-align:center;
        width:100%;
        text-decoration:none;
        color:#000;
        font-size:12px;
        cursor: pointer;
        float:left;
        height:38px;
        white-space:nowrap;
        &:hover {
          background:#ccc;
          color:#fff;
        }
      }
    }
    &-nav {
      width:75%;
      float:right;
      transition: width .5s;
      &.wide {
        width:100%;
      }
      a {
        height:38px;
        width:25%;
        display:block;
        float:left;
        text-align:center;
        padding:12px 0;
        text-decoration:none;
        color:#666;
        font-size:12px;
        box-shadow:-1px 0 0 rgba(#000, .2);
        &:hover, &.active {
          background:#ccc;
          color:#fff;
        }
      }
    }
  }
  
  .page-placeholder {
    position:absolute;
    top:40px;
    width:100%;
    height:100vh;
  }
 
  .page-cover {
    position:absolute;
    top:38px; //38px is the header
    left:0;
    width:100%;
    height:calc(100vh - 38px); //38px is the header
    background:#eee;
    z-index:3;
    transform: translate3d(100%, 0px, 0px);
    box-shadow: -1px 0 2px rgba(#000, .2);
    &:before {
      content: '';
    }
    &.cover {
      animation: cover ease .3s;
		  animation-fill-mode: forwards;
    }
  }
  
  .page {
    position:absolute;
    left:0;
    width:100%;
    opacity: 0;
	  transition: opacity .3s ease;
    background:#fff;
    height:100%;
    z-index: -1;
    &:last-child {
      z-index:2!important;
    }
    &.pageFade {
      z-index: 1;
      opacity: 1;
      overflow-y: scroll!important; 
      -webkit-overflow-scrolling: touch!important;
      box-shadow: -1px 0 0 rgba(#000, .7);
	  }
    
    &.moveToLeft {
	  	z-index: 2;
  		animation: moveToLeft ease .4s;
		  animation-fill-mode: forwards;
	  }
    	&.moveToRight {
      z-index: 2;
      animation: moveToRight ease .4s;
      animation-fill-mode: forwards;
    }
    p {
      margin-top:350px;
      margin-bottom:350px;
    }
  }
}



@keyframes moveToRight {
	to { transform: translate3d(100%, 0px, 0px); }
}

@keyframes moveToLeft {
	to { transform: translate3d(-100%, 0px, 0px); }
}

@keyframes cover {
	to { transform: translate3d(0%, 0px, 0px); }
}

@keyframes pageFadeIn {
	0%   { opacity: 0; }
	100% { opacity: 1; }
}


/*
 *Not related
 */

.entry {
  ul {
    padding:0;
    margin:0 3px 0 0;
    li {
      list-style:none;
      overflow:hidden;
      width:50%;
      float:left;
      img {
        width:100%;
        display:block;
        float:left;
        margin:3px 0 0 3px;
      }
    }
  }
}

.page{
  &--something {
    ul li {
      width:33%!important;
    }
  }
  &--about {
    ul li {
      width:50%!important;
    }
  }
  &--blog {
    ul li {
      width:33%!important;
    }
  }
  &--contact {
    ul li {
      width:50%!important;
    }
  }
}

$vv_loaderSize: 20px;
.loader {
  width:$vv_loaderSize;
  height:$vv_loaderSize;
  border-radius:50%;
  position:absolute;
  top:50%;
  left:50%;
  margin-top:-$vv_loaderSize / 2;
  margin-left:-$vv_loaderSize / 2;
  &:before, &:after {
    content: '';
    display:inline-block;
    position:absolute;
    top:0;
    left:0;
    width:$vv_loaderSize;
    height:$vv_loaderSize;
    border:2px solid #eee;
    border-radius:50%;
  }
  &:after {
    bordercolor: transparent;
    border-top-color: #F18020;
    animation: vv_loaderspin .5s infinite;
  }
}


@keyframes vv_loaderspin {
    from {transform:rotate(0deg);}
    to {transform:rotate(360deg);}
}


              
            
!

JS

              
                //Define my app
var appShell = appShell || {};
appShell.images_count = 20;
appShell.cache = [];
appShell.history = [];
appShell.backButton = false;

//Every click should be prevented and made magic with it
$('.app').on('click', 'a', function(e) {
  e.preventDefault();

  //If back button is clicked
  if ($(this).hasClass('js-back')) {

    //Set a flag
    appShell.backButton = true;
    window.history.back();
  } else {

    //Navigate away, the router will know what to do
    appShell.navigate(this.hash.substr(1));
  }

});

//All views are the same
appShell.View = Backbone.View.extend({
  tagName: 'div',
  className: 'page',
  placeholder: '#page-placeholder',

  initialize: function() {
    this.render();
  },

  render: function() {
    var source = $("#home-template").html();
    var template = Handlebars.compile(source);
    var name = this.name;
    var data = {
      name: this.name,
      images: []
    };

    var imagesHref = 'home';
    switch (this.name) {
      case "home":
        imagesHref = 'io'
        break;
      case "io":
        imagesHref = 'about'
        break;
      case "about":
        imagesHref = 'blog'
        break;
      case "blog":
        imagesHref = 'contact'
        break;
      default:
        imagesHref = 'home'
    }

    _(40).times(function(n) {
      data.images.push({
        'src': 'https://source.unsplash.com/200x300/?sig=' + appShell.images_count,
        'href': imagesHref
      });
      appShell.images_count += 1
    });

    $(this.el).addClass('page--' + name).attr('id', 'page--' + name);

    var tempHtml = template(data);

    var self = this;

    appShell.backButton = false;

    $(this.el).html(tempHtml);
    $(this.el).appendTo(this.placeholder);
    $(this.el).addClass('pageFade');

    //Simulate a loading for models or data
    setTimeout(function() {
      $('.page').not('.page--' + name);
      //After a few seconds remove the cover
      setTimeout(function() {
        $('.page-cover').removeClass('cover');
      }, 200)
    }, 1000)

  }
});

//Route everything and make everything a view
appShell.router = Backbone.Router.extend({
  routes: {
    '*notFound': "renderPage"
  },

  updateBackButtonUi: function() {
    var hash = window.location.hash.replace(/^#+/i, '');

    $('.js-header-nav a').each(function() {
      if ($(this).attr('href') == '#' + hash) {
        $(this).addClass('active');
      } else {
        $(this).removeClass('active');
      }
    })

    console.log('Back button checker');

    if (appShell.history.length > 0 && hash !== '') {
      $('.js-header-back').removeClass('hidden');
      $('.js-header-nav').removeClass('wide');
    } else {

      $('.js-header-back').addClass('hidden');
      $('.js-header-nav').addClass('wide');
    }
  },

  forward: function() {

    var name = Backbone.history.fragment ? Backbone.history.fragment : 'home';

    appShell.history.push({
      name: name,
      fragment: Backbone.history.fragment
    });

    //Remove view if already here
    if (typeof appShell.cache['view' + name] !== 'undefined') {
      appShell.cache['view' + name].remove();
      delete appShell.cache['view' + name];
    }

    appShell['view' + name] = appShell.View.extend({
      name: name
    });
    appShell.cache['view' + name] = new appShell['view' + name];
  },

  backward: function() {

    var name = Backbone.history.fragment ? Backbone.history.fragment : 'home';

    //Making sure that the page was not removed by mistake, if it was, just load the view again.
    if (typeof appShell.cache['view' + name] == 'undefined') {
      this.forward();
      console.warn('Something weird');
    } else {

      $('.page').last().addClass('moveToRight').one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(event) {
        var name = appShell.history[appShell.history.length - 1].name;
        appShell.backButton = false;
        appShell.cache['view' + name].remove();
        delete appShell.cache['view' + name];
        appShell.history.splice(appShell.history.length - 1);
      });

    }

  },

  renderPage: function() {
    console.log(appShell.backButton);

    this.updateBackButtonUi();

    if (appShell.backButton == true) {
      this.backward();
    } else {
      this.forward();
    }

  },
});

//Init
new appShell.router();
Backbone.history.start({
  pushState: false
});

appShell.navigate = function(location) {
  var hash = window.location.hash.replace(/^#+/i, '');
  console.log('Location: ' + location + ' and hash: ' + hash)
  if (hash !== location) {
    $('.page-cover').addClass('cover').one('webkitAnimationEnd oanimationend msAnimationEnd animationend', function(event) {

      appShell.callerAnimateNavigate = true;
      window.location.hash = location;
      appShell.callerAnimateNavigate = false;

    });

  }
}
              
            
!
999px

Console