Animated menu

<header class="header-main">

  <a class='header-main__menu js-menu-toggle'>
   <div class='header-main__menu-bars'></div>
  </a> 
</header>  

<section class="header-menu height--100">
  <div class="header-menu__content">

  <nav class="header-menu__nav-cases">

      <span class="nav__label">Stories</span>
    <ul>
      <li>
    <article class="header-menu__page">
      <span class="page__label">01 <span>Pemco</span></span>
      <img src="https://unsplash.it/g/600/400?image=453"/>
    </article>  
      </li>
      
      <li>
    <article class="header-menu__page">
      <span class="page__label">02 <span>Acme</span></span>
      <img src="https://unsplash.it/g/600/400?image=486"/>
    </article>  
      </li>
      <li>
    <article class="header-menu__page">
      <span class="page__label">03 <span>Turtles</span></span>
      <img src="https://unsplash.it/g/600/400?image=655"/>
    </article>  
      </li>
    <li>
    <article class="header-menu__page">
      <span class="page__label">04 <span>Wombats</span></span>
      <img src="https://unsplash.it/g/600/400?image=735"/>
    </article>  
      </li>
      <li>
    <article class="header-menu__page">
      <span class="page__label">05 <span>Meerkat</span></span>
      <img src="https://unsplash.it/g/600/400?image=802"/>
    </article> 
      </li>
      
      <li>
    <article class="header-menu__page">
      <span class="page__label">06 <span>Stink Beetles</span></span>
      <img src="https://unsplash.it/g/600/400?image=939"/>
    </article> 
      </li>
       <li>
    <article class="header-menu__page">
      <span class="page__label">07 <span>Donkeys</span></span>
      <img src="https://unsplash.it/g/600/400?image=335"/>
    </article>  
      </li>
      <li>
    <article class="header-menu__page">
      <span class="page__label">08 <span>Sheeps</span></span>
      <img src="https://unsplash.it/g/600/400?image=811"/>
    </article> 
      </li>
      
      <li>
    <article class="header-menu__page">
      <span class="page__label">09 <span>Cuttle Fishes</span></span>
      <img src="https://unsplash.it/g/600/400?image=919"/>
    </article> 
      </li>
    </ul>
  </nav>
  </div>
</section>  

<!-- Main
============================== -->	
<main role="main">

<!-- Mast
============================== -->	
<section class="mast-page mast--overlay align--vcenter height--100">
  <div class="mast-page__content">
    <h1>This A Header</h1>
    <p>And this right here is a little intro paragraphy.</p>
  </div>
</section>
</main>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
//Скрипт js надо подключать здесь
//Автор: Stephen Scaff. @StephenScaff

::-webkit-scrollbar-thumb {
  background-color: transparent;
}

::-webkit-scrollbar {
  -webkit-appearance: none;
  width: 5px;
  height: 5px;
  background: transparent;
}

/*---------------------------------   
--mixin for links
-----------------------------------  */
/*-----------------------------   
--Mixin for Overlays
-------------------------------  */
/*---------------------------------   
-Setup
-----------------------------------  */
*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  font-size: 100%;
  overflow-y: scroll;
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
  background-color: #fff;
}

/*---------------------------------   
--Typography
-----------------------------------  */
body {
  font-family: "Source Serif Pro", georgia, times, serif;
  color: #444;
  position: relative;
  width: 100%;
  font-weight: 400;
  font-style: normal;
  line-height: 1.9;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  margin: 0;
}

/*---------------------------------   
--Fluid body sizing
-----------------------------------  */
body {
  font-size: 100%;
}
@media (min-width: 36em) {
  body {
    font-size: 110%;
  }
}
@media (min-width: 58em) {
  body {
    font-size: 120%;
  }
}
@media (min-width: 86em) {
  body {
    font-size: 130%;
  }
}
@media (min-width: 115em) {
  body {
    font-size: 160%;
  }
}
@media (min-width: 125em) {
  body {
    font-size: 170%;
  }
}
@media (min-width: 145em) {
  body {
    font-size: 180%;
  }
}

/*---------------------------------   
--Images
-----------------------------------  */
img, object, embed {
  max-width: 100%;
  height: auto;
}

img {
  -ms-interpolation-mode: bicubic;
  border: 0;
  max-width: 100%;
  width: 100%;
}

figure {
  margin: 1em 0;
}

.code-block {
  font-size: 75%;
  background-color: #eee;
  display: block;
  padding: 2em;
  border-radius: 4px;
  overflow-x: scroll;
}

/*---------------------------------   
--Headers
-----------------------------------  */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 400;
  display: block;
  font-family: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-rendering: optimizeLegibility;
}

/*---------------------------------   
--h1 Theme
-----------------------------------  */
h1, .font-h1 {
  font-size: 2em;
  line-height: 1;
  margin-bottom: 0.25em;
}
@media (min-width: 58em) {
  h1, .font-h1 {
    font-size: 2.15em;
  }
}
@media (min-width: 115em) {
  h1, .font-h1 {
    font-size: 2.4em;
  }
}

/*---------------------------------   
--h2 theme
-----------------------------------  */
h2, .font-h2 {
  font-size: 1.75em;
  line-height: 1.35;
  margin-bottom: 0.5em;
}
@media (min-width: 115em) {
  h2, .font-h2 {
    font-size: 2em;
  }
}

/*---------------------------------   
--h3 Theme
-----------------------------------  */
h3, .font-h3 {
  font-size: 1.4em;
  line-height: 1.35;
  margin-bottom: 0.6em;
}
@media (min-width: 115em) {
  h3, .font-h3 {
    font-size: 1.65em;
  }
}

/*---------------------------------   
--h4 Theme
-----------------------------------  */
h4, .font-h4 {
  font-size: 1.2em;
  line-height: 1.4;
  margin-bottom: 0.5em;
  font-weight: 400;
}
@media (min-width: 115em) {
  h4, .font-h4 {
    font-size: 1.45em;
  }
}

/*---------------------------------   
--h5 theme
-----------------------------------  */
h5, .font-h5 {
  font-size: 0.9em;
  line-height: 1.4;
  margin-bottom: 0.4em;
}
/*---------------------------------   
--Headers Apply Theme
-----------------------------------  */
/*--------------------------------   
--Font Lead
----------------------------------  */
.font-lead {
  font-size: 120%;
  hyphens: none;
  margin-bottom: 0.8em;
  line-height: 1.6;
}
@media (min-width: 58em) {
  .font-lead {
    font-size: 135%;
  }
}

/*---------------------------------   
--typography
-----------------------------------  */
p {
  margin-top: 0;
  margin-bottom: 1.3em;
}

small {
  font-size: 0.77em;
}

/*--------------------------------   
--Links
----------------------------------  */
a {
  color: #63F1E3;
  text-decoration: none;
  line-height: inherit;
  -webkit-transition: color 0.4s ease-in-out;
  -moz-transition: color 0.4s ease-in-out;
  transition: color 0.4s ease-in-out;
}
a:hover, a:focus {
  color: #a9f7f0;
  -webkit-transition: color 0.4s ease-out-out;
  -moz-transition: color 0.4s ease-out-out;
  transition: color 0.4s ease-out-out;
}
a:active {
  color: #34eddb;
}

/*--------------------------------   
--Selection
----------------------------------  */
*::selection {
  background: #0c82a5;
  color: white;
}

/*---------------------------------   
--Layout: Row/container
-----------------------------------  */
.row {
  width: 90%;
  margin-left: auto;
  margin-right: auto;
}
@media (min-width: 36em) {
  .row {
    max-width: 80%;
  }
}
@media (min-width: 86em) {
  .row {
    max-width: 60%;
  }
}

.stacked {
  border: 0;
  border-top: 1px solid #ddd;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2), 0 4px 0 -1px #FFF, 0 4px 1px 0px rgba(0, 0, 0, 0.19), 0 8px 0 -2px #FFF, 0 8px 2px -1px rgba(0, 0, 0, 0.17);
}

/*---------------------------------   
--Layout: Positoning
-----------------------------------  */
.align--vcenter, .align--top, .align--bottom {
  display: -webkit-box;
  display: -moz-box;
  display: box;
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  box-pack: center;
  -webkit-justify-content: center;
  -moz-justify-content: center;
  -ms-justify-content: center;
  -o-justify-content: center;
  justify-content: center;
  -ms-flex-pack: center;
}

.align--vcenter {
  -webkit-box-align: center;
  -moz-box-align: center;
  box-align: center;
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  -o-align-items: center;
  align-items: center;
  -ms-flex-align: center;
}

.align--vtop {
  -webkit-box-align: start;
  -moz-box-align: start;
  box-align: start;
  -webkit-align-items: flex-start;
  -moz-align-items: flex-start;
  -ms-align-items: flex-start;
  -o-align-items: flex-start;
  align-items: flex-start;
  -ms-flex-align: start;
}

.align--vbottom {
  -webkit-box-align: end;
  -moz-box-align: end;
  box-align: end;
  -webkit-align-items: flex-end;
  -moz-align-items: flex-end;
  -ms-align-items: flex-end;
  -o-align-items: flex-end;
  align-items: flex-end;
  -ms-flex-align: end;
}

/*---------------------------------   
--Height modifier
-----------------------------------  */
.height--100 {
  height: 100vh;
}

/*---------------------------------   
--Header
-----------------------------------  */
.header-main {
  position: fixed;
  z-index: 98;
  top: 0;
  left: 0;
  right: 1em;
  width: 100%;
}

.header-main__menu {
  position: absolute;
  right: 1em;
  top: 0.5em;
}

/*-------------------------------   
--Mobile Nav: Menu Bars
----------------------------------  */
.header-main__menu-bars {
  width: 2rem;
  height: 1px;
  margin: 0.75em 0;
  background: #fff;
  position: relative;
  z-index: 99;
  -webkit-transition: top 0.3s ease-in-out;
  -moz-transition: top 0.3s ease-in-out;
  transition: top 0.3s ease-in-out;
}
.header-main__menu-bars:before {
  top: -8px;
}
.header-main__menu-bars:after {
  top: 8px;
}
.header-main__menu-bars:after, .header-main__menu-bars:before {
  content: "";
  display: block;
  width: 2rem;
  height: 1px;
  background: #fff;
  position: absolute;
  z-index: -1;
  -webkit-transition: all 0.3s ease-in-out;
  -moz-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}
.header-main__menu-bars:hover {
  cursor: pointer;
}

/*---------------------------------   
--Header-menu -offcanvas
-----------------------------------  */
.header-menu {
  background-color: rgba(0, 0, 0, 0.5);
  position: fixed;
  z-index: 91;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  z-index: -1;
  -webkit-transform: scale(15);
  -moz-transform: scale(15);
  -ms-transform: scale(15);
  -o-transform: scale(15);
  transform: scale(15);
  -webkit-transition: all 0.7s cubic-bezier(0.77, 0, 0.175, 1);
  -moz-transition: all 0.7s cubic-bezier(0.77, 0, 0.175, 1);
  transition: all 0.7s cubic-bezier(0.77, 0, 0.175, 1);
}
.header-menu .header-menu__content {
  margin-top: 4em;
  padding: 0 1%;
}
.header-menu .nav__label {
  font-family: "Roboto Condensed", "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-transform: uppercase;
  font-size: 0.6em;
  padding-left: 0.5em;
  color: rgba(255, 255, 255, 0.4);
}
.header-menu__nav {
  position: relative;
  z-index: 99;
}
.header-menu__nav {
  *zoom: 1;
}
.header-menu__nav:before, .header-menu__nav:after {
  content: "";
  display: table;
}
.header-menu__nav:after {
  clear: both;
}
.header-menu__nav li {
  display: inline;
  -webkit-transition: opacity 0.6s ease, -webkit-transform 4s ease;
  -moz-transition: opacity 0.6s ease, -moz-transform 4s ease;
  transition: opacity 0.6s ease, transform 4s ease;
}
.header-menu nav {
  position: relative;
  z-index: 99;
}
.header-menu nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.header-menu nav ul li {
  opacity: 0;
  -webkit-transition: all 0.6s ease;
  -moz-transition: all 0.6s ease;
  transition: all 0.6s ease;
}
.header-menu .header-menu__nav {
  width: 100%;
}
.header-menu .header-menu__nav a {
  font-family: "Roboto Condensed", "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  overflow: hidden;
  display: inline-block;
  padding: 0 0.25em;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  line-height: inherit;
  -webkit-transition: color 0.4s ease-in-out;
  -moz-transition: color 0.4s ease-in-out;
  transition: color 0.4s ease-in-out;
}
.header-menu .header-menu__nav a:hover, .header-menu .header-menu__nav a:focus {
  color: rgba(255, 255, 255, 0.4);
  -webkit-transition: color 0.4s ease-out-out;
  -moz-transition: color 0.4s ease-out-out;
  transition: color 0.4s ease-out-out;
}
.header-menu .header-menu__nav a:active {
  color: rgba(191, 191, 191, 0.4);
}
.header-menu .header-menu__nav a:after {
  content: "";
  position: absolute;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.4);
  left: 0;
  right: 0;
  top: 60%;
  margin: 0 auto;
  -webkit-transform: translateX(-100%);
  -moz-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  -o-transform: translateX(-100%);
  transform: translateX(-100%);
  -webkit-transition: all 0.6s ease;
  -moz-transition: all 0.6s ease;
  transition: all 0.6s ease;
}
.header-menu .header-menu__nav a:hover:after {
  width: 100%;
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
  -webkit-transition: -webkit-transform 0.6s ease;
  -moz-transition: -moz-transform 0.6s ease;
  transition: transform 0.6s ease;
}
.header-menu .header-menu__nav-cases {
  width: 100%;
}
.header-menu .header-menu__nav-cases ul {
  margin-left: -0.6%;
  margin-right: -0.6%;
}
.header-menu .header-menu__nav-cases ul li {
  list-style: none;
  font-family: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  letter-spacing: 0.05em;
  position: relative;
  float: left;
  width: 33.333%;
  padding: 1%;
}
.header-menu .page__label {
  font-family: "Roboto Condensed", "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 0.9rem;
  padding-left: 1em;
}
.header-menu .page__label span {
  font-family: "Source Serif Pro", georgia, times, serif;
  font-style: italic;
}
.header-menu .header-menu__page {
  background: #fff;
  float: left;
  box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.2);
}
.header-menu .header-menu__page img {
  float: left;
}

/*----------------------------------   
--JS-Nav-Open: Menu Bars Animate
-----------------------------------  */
.js-menu--is-open {
  /*--Menu-bars--*/
  /*-- is--open header-menu --*/
}
.js-menu--is-open .header-main__menu-bars {
  background: none !important;
}
.js-menu--is-open .header-main__menu-bars:after, .js-menu--is-open .header-main__menu-bars:before {
  top: 0 !important;
  background: #fff !important;
  zoom: 1;
}
.js-menu--is-open .header-main__menu-bars:after {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
.js-menu--is-open .header-main__menu-bars:before {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
.js-menu--is-open .header-menu {
  height: 100%;
  opacity: 1;
  z-index: 91;
  background-color: #333;
  -webkit-transform: scale(1);
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -o-transform: scale(1);
  transform: scale(1);
  -webkit-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  -moz-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}
.js-menu--is-open .header-menu nav li {
  opacity: 1;
  -webkit-transform: translateY(0);
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -o-transform: translateY(0);
  transform: translateY(0);
  -webkit-transition: all 0.6s 0.6s ease;
  -moz-transition: all 0.6s 0.6s ease;
  transition: all 0.6s 0.6s ease;
}
.js-menu--is-open .header-menu nav li:nth-of-type(1n) {
  -webkit-transition-delay: 0.6s;
  -moz-transition-delay: 0.6s;
  transition-delay: 0.6s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(2n) {
  -webkit-transition-delay: 0.7s;
  -moz-transition-delay: 0.7s;
  transition-delay: 0.7s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(3n) {
  -webkit-transition-delay: 0.8s;
  -moz-transition-delay: 0.8s;
  transition-delay: 0.8s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(4n) {
  -webkit-transition-delay: 0.9s;
  -moz-transition-delay: 0.9s;
  transition-delay: 0.9s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(5n) {
  -webkit-transition-delay: 1s;
  -moz-transition-delay: 1s;
  transition-delay: 1s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(6n) {
  -webkit-transition-delay: 1.1s;
  -moz-transition-delay: 1.1s;
  transition-delay: 1.1s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(7n) {
  -webkit-transition-delay: 1.2s;
  -moz-transition-delay: 1.2s;
  transition-delay: 1.2s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(8n) {
  -webkit-transition-delay: 1.3s;
  -moz-transition-delay: 1.3s;
  transition-delay: 1.3s;
}
.js-menu--is-open .header-menu nav li:nth-of-type(9n) {
  -webkit-transition-delay: 1.4s;
  -moz-transition-delay: 1.4s;
  transition-delay: 1.4s;
}
.js-menu--is-open .header-menu:before {
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
  -webkit-transition: all 0.6s 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  -moz-transition: all 0.6s 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  transition: all 0.6s 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}
.js-menu--is-open .header-menu:after {
  -webkit-transform: translateX(0);
  -moz-transform: translateX(0);
  -ms-transform: translateX(0);
  -o-transform: translateX(0);
  transform: translateX(0);
  -webkit-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  -moz-transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
  transition: all 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

/*---------------------------------   
--Sections
-----------------------------------  */
.section--padding {
  padding: 2em 0;
}
@media (min-width: 58em) {
  .section--padding {
    padding: 4em 0;
  }
}

/*---------------------------------   
--overlay
-----------------------------------  */
.mast--overlay {
  position: relative;
}
.mast--overlay:before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.4);
}
.mast--overlay > div {
  position: relative;
  z-index: 5;
}

.mast-page {
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

/*---------------------------------   
--Masthead
-----------------------------------  */
.mast-page {
  background-image: url(https://unsplash.it/g/1900/1100?image=436);
}
.mast-page__content {
  text-align: center;
}
.mast-page__content h1 {
  font-size: 2em;
  font-weight: 700;
  color: #fff;
  font-family: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-shadow: 0px 8px 10px rgba(0, 0, 0, 0.05);
}
@media (min-width: 58em) {
  .mast-page__content h1 {
    font-size: 5vw;
  }
}
.mast-page__content p {
  color: #fff;
}
@media (min-width: 58em) {
  .mast-page__content p {
    font-size: 2vw;
  }
}

$(".js-menu-toggle").click(function (e) {
  $("body").toggleClass("js-menu--is-open");
  e.preventDefault();
});

/*----------------------------------------------   
--Web font loader
-----------------------------------------------  */
WebFontConfig = {
  google: {
    families: [
      "Montserrat:400,700:latin",
      "Source Serif Pro",
      "Roboto Condensed:300,400"
    ]
  }
};

(function () {
  var wf = document.createElement("script");
  wf.src =
    ("https:" == document.location.protocol ? "https" : "http") +
    "://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js";
  wf.type = "text/javascript";
  wf.async = "true";
  var t = document.getElementsByTagName("script")[0];
  t.parentNode.insertBefore(wf, t);
})();