<div class="window">
  <div class="header">
    <div class="burger-container">
      <div id="burger">
        <div class="bar topBar"></div>
        <div class="bar btmBar"></div>
      </div>
    </div>
    <div class="icon icon-apple"></div>
    <ul class="menu">
      <li class="menu-item"><a href="#">Mac</a></li>
      <li class="menu-item"><a href="#">iPad</a></li>
      <li class="menu-item"><a href="#">iPhone</a></li>
      <li class="menu-item"><a href="#">Watch</a></li>
      <li class="menu-item"><a href="#">TV</a></li>
      <li class="menu-item"><a href="#">Music</a></li>
      <li class="menu-item"><a href="#">Support</a></li>
    </ul>
    <div class="shop icon icon-bag"></div>
  </div>
  <div class="content"> 
  </div>
</div>
@import url(https://fonts.googleapis.com/css?family=Ek+Mukta:200);


$cubic: cubic-bezier(0.4, 0.01, 0.165, 0.99);
$mukta: 'Ek Mukta', sans-serif;;

$menuItems: 7;

body {
    margin: 0;
    line-height: 1.4;
    background: #E1E1E1;
}

.window {
    position: relative;
    display: block;
    width: 360px;
    height: 567px;
    margin: 100px auto 0;
    box-shadow: 0 0 65px 15px rgba(#000, 0.2);
    overflow: hidden;
    border-radius: 3px;
    background: #F1F1F1;
    .header {
        position: absolute;
        display: block;
        top: 0;
        left: 0;
        height: 50px;
        width: 100%;
        background: rgba(#000,0.8);
        overflow: hidden;
        transition: all 0.5s ease-out, background 1s ease-out;
        transition-delay: 0.2s;
        z-index: 1;
        .burger-container {
            position: relative;
            display: inline-block;
            height: 50px;
            width: 50px;
            cursor: pointer;
            transform: rotate(0deg);
            transition: all 0.3s $cubic;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
            #burger {
                width: 18px;
                height: 8px;
                position: relative;
                display: block;
                margin: -4px auto 0;
                top: 50%;
                .bar {
                    width: 100%;
                    height: 1px;
                    display: block;
                    position: relative;
                    background: #FFF;
                    transition: all 0.3s $cubic;
                    transition-delay: 0s;
                    &.topBar {
                        transform: translateY(0px) rotate(0deg);
                    }
                    &.btmBar {
                        transform: translateY(6px) rotate(0deg);
                    }
                }
            }
        }
        .icon {
            display: inline-block;
            position: absolute;
            height: 100%;
            line-height: 50px;
            width: 50px;
            height: 50px;
            text-align: center;
            color: #FFF;
            font-size: 22px;
            left: 50%;
            transform: translateX(-50%);
            &.icon-bag {
                right: 0;
                top: 0;
                left: auto;
                transform: translateX(0px);
                transition: transform 0.5s $cubic;
                transition-delay: 0.65s;
            }
        }
        ul.menu {
            position: relative;
            display: block;
            padding: 0px 48px 0;
            list-style: none;
            li.menu-item {
                border-bottom: 1px solid #333;
                margin-top: 5px;
                transform: scale(1.15) translateY(-30px);
                opacity: 0;
                transition: transform 0.5s $cubic, opacity 0.6s $cubic;
                @for $i from 1 through $menuItems {
                    &:nth-child(#{$i}) {
                        transition-delay: #{0.56 - ($i * 0.07)}s;
                    }
                }
                a {
                    display: block;
                    position: relative;
                    color: #FFF;
                    font-family: $mukta;
                    font-weight: 100;
                    text-decoration: none;
                    font-size: 22px;
                    line-height: 2.35;
                    font-weight: 200;
                    width: 100%;
                }
            }
        }
        &.menu-opened {
            height: 100%;
            background-color: #000;
            transition: all 0.3s ease-in, background 0.5s ease-in;
            transition-delay: 0.25s;
            .burger-container {
                transform: rotate(90deg);
                #burger {
                    .bar {
                        transition: all 0.4s $cubic;
                        transition-delay: 0.2s;
                        &.topBar {
                            transform: translateY(4px) rotate(45deg);
                        }
                        &.btmBar {
                            transform: translateY(3px) rotate(-45deg);
                        }
                    }
                }
            }
            ul.menu {
                li.menu-item {
                    transform: scale(1) translateY(0px);
                    opacity: 1;
                    @for $i from 1 through $menuItems {
                        &:nth-child(#{$i}) {
                            transition-delay: #{0.07 * $i+0.2}s;
                        }
                    }
                }
            }
            .icon {
                &.icon-bag {
                    transform: translateX(75px);
                    transition-delay: 0.3s;
                }
            }
        }
    }
    .content {
        font-family: $mukta;
        padding: 67px 4% 0;
        text-align: justify;
        overflow: scroll;
        max-height: 100%;
        &::-webkit-scrollbar  {
            display: none;
        }
        h2 {
            margin-bottom: 0px;
            letter-spacing: 1px;
        }
        img {
            width: 95%;
            position: relative;
            display: block;
            margin: 75px auto 75px;
            &:nth-of-type(2) {
                margin: 75px auto;
            }
        }
    }
    @media(max-width: 600px) {
        width: 100%;
        height: 100vh;
        margin: 0;
        border-radius: 0px;
        .header {
            position: fixed;
        }
    }
}
View Compiled
(function(){
    var burger = document.querySelector('.burger-container'),
        header = document.querySelector('.header');
    
    burger.onclick = function() {
        header.classList.toggle('menu-opened');
    }
}());

External CSS

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External JavaScript

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