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HTML 

              
                <div class="neo">
    <div class="neo-device">
        <div class="neo-App">
            <header class="neo-Header neo--has3D">
                <button class="neo-Header-button neo--has3D" data-icon="&#9776;"></button>
                <h3 class="neo-Header-title neo--has3D">Title</h3>
                <button class="neo-Header-button neo--has3D" data-icon="&#59157;"></button>
            </header>
            <div class="neo-Search neo--has3D">
                <input class="neo-Search-input neo--has3D" type="search" placeholder="Search">
                <output class="neo-Search-badge neo--has3D">13</output>
            </div>
            <div class="neo-Content neo--has3D">
                <div class="neo-Content-img neo--has3D"></div>
                <div class="neo-Content-img neo--has3D"></div>
                <div class="neo-Content-img neo--has3D"></div>
                <div class="neo-Content-img neo--has3D"></div>
            </div>
            <nav class="neo-TabBar neo--has3D">
                <button class="neo-TabBar-tab neo--has3D" data-icon="&#128227;">New</button>
                <button class="neo-TabBar-tab neo--has3D neo-TabBar-tab--active" data-icon="&#128640;">Popular</button>
                <button class="neo-TabBar-tab neo--has3D" data-icon="&#9733;">Favs</button>
                <button class="neo-TabBar-tab neo--has3D" data-icon="&#9206;">More</button>
            </nav>
        </div>
    </div>
</div>
!

CSS 

              
                html {
  background: hsl(0,0%,14%);
  height: 100%;
}

body {
  display: flex;
  height: 100%;
}


/* Neo ------------------- */

.neo {
    position: relative;
    margin: auto;
    width: 540px;
    height: 540px;
    perspective: 1000px;
    perspective-origin: 50% 0;
}

.neo-device {
    position: absolute;
    top: 40px;
    right: 60px;
    width: 240px;
    height: 360px;
    box-sizing: content-box;
    padding: 40px 10px;
    border-radius: 20px;
    background: hsl(0,0%,24%);
    transform-style: preserve-3d;
    backface-visibility: hidden;
    transform: rotateX(0deg) rotateY(-20deg) rotateZ(10deg) scale(.84);
    transition: transform 1s cubic-bezier(.5,.05,.09,1);
}

.neo:hover .neo-device {
    transition-duration: .6s;
    transform: translateX(-120px) rotateX(10deg) rotateY(40deg) rotateZ(-20deg);
}


.neo--has3D {
    backface-visibility: hidden;
    transform-style: preserve-3d;
    transform: translateZ(1px); /* Needs to be > 0 to avoid flickering */
    animation: neo-pulse 1s .2s cubic-bezier(.7,0,.3,1) alternate infinite;
    animation-play-state: paused;
}

.neo:hover .neo--has3D {
    animation-play-state: running;
}

.neo--has3D:nth-child(1) { 
    animation-delay: .3s;
}
.neo--has3D:nth-child(2) { 
    animation-delay: .4s;
}
.neo--has3D:nth-child(3) { 
    animation-delay: .5s;
}
.neo--has3D:nth-child(4) { 
    animation-delay: .6s;
}

@keyframes neo-pulse {
  100% { transform: translateZ(80px); opacity: .8; }
}



/* Neo App ---------------- */

.neo-App {
    display: flex;
    flex-direction: column;
    height: 100%;
    font-family: 'Open Sans', sans-serif;
    text-shadow: none;
    background-color: hsl(0,0%,20%);
    resize: none;
}


/* Neo Header ---------------- */

.neo-Header {
    display: flex;
    color: hsla(0,0%,0%,.6);
    border-bottom: 2px solid hsla(0,0%,0%,.3);
    background-color: #2ecc71;
}

.neo-Header-title {
    flex: 1;
    display: block;
    margin: 0;
    padding: 0;
    text-align: center;
    color: inherit;
    font-size: 1.2em;
    line-height: 50px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    border-left: 1px solid hsla(0,0%,0%,.1);
    border-right: 1px solid hsla(0,0%,0%,.1);
    background: inherit;
}

.neo-Header-button {
    display: block;
    position: relative;
    width: 50px;
    height: 50px;
    border: none;
    color: inherit;
    border-radius: 0;
    margin: 0;
    background: inherit;
}
.neo-Header-button[data-icon]:before {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    font-size: 50px;
    line-height: 50px;
}

.neo-Header-button:active {
    color: #fff;
    background-color: hsla(0,0%,0%,.2);
}


/* Neo Search ---------------- */

.neo-Search {
    display: flex;
    padding: 10px;
    background-color: #1abc9c;
}

.neo-Search .neo-Search-input {
    flex: 1;
    -webkit-appearance: none; /* Removes inner shadow on iOS. */
    display: block;
    outline: none;
    box-sizing: border-box;
    font-size: 14px;
    height: 2.5em;
    padding: 0.5em;
    vertical-align: middle;
    border-radius: 3px;
    border: 2px solid hsla(0, 0%, 0%, 0.1);
    background-color: inherit;
}

.neo-Search-input:focus {
    border-color: hsla(0, 0%, 0%, 0.3);
}

.neo-Search-input::-webkit-input-placeholder {
    color: hsla(0,0%,0%,.5);
}

.neo-Search-badge {
    display: block;
    margin: 0 0 0 10px;
    padding: 0 9px;
    min-width: 30px;
    border-radius: 3px;
    box-sizing: border-box;
    vertical-align: middle;
    font-size: 16px;
    line-height: 30px;
    font-weight: bold;
    color: hsla(0,0%,0%,.5);
    border: 2px solid hsla(0, 0%, 0%, 0.1);
    background-color: inherit;
}


/* Neo Content ---------------- */

.neo-Content {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-flow: row wrap;
    position: relative;
    padding: 5px;
    text-align: center;
    font-size: 0;
    background: hsl(200,30%,30%);
}

.neo-Content-img { 
    flex: 1 0 50%;
    box-sizing: border-box;
    padding: inherit;
    background-color: hsl(200,30%,40%);
    background-clip: content-box;
}

@-moz-document url-prefix() {
    /* Hack since FF doesn't support flex-flow: row wrap; but already is unprefixed */
    .neo-Content {
        flex-direction: column;
    }
    .neo-Content-img {
        flex: 1;
    }
}


/* Neo TabBar ---------------- */

.neo-TabBar {
    display: flex;
    margin: 0;
    padding: 0;
    background-color: #3498db;
}

.neo-TabBar-tab {
    flex: 1;
    display: block;
    box-sizing: border-box;
    margin: 0;
    padding: 4px;
    height: 50px;
    border-radius: 0;
    font-size: 16px;
    cursor: pointer;
    outline: none;
    color: hsla(0,0%,0%,.5);
    border: none;
    border-left: 1px solid hsla(0,0%,0%,.1);
    background: inherit;
}

.neo-TabBar-tab[data-icon] {
    position: relative;
    padding: 30px 0 0 0;
    font-size: 10px;
}

.neo-TabBar-tab[data-icon]:before {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    font-size: 50px;
    line-height: 40px;

}

.neo-TabBar-tab--active,
.neo-TabBar-tab:active {
    color: hsla(0,0%,100%,.6);
    background-color: #2980b9;
}
!

JS
!
999px

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