Incredible Animated Share Buttons - Snippet

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HTML
CSS
JS

    <div>
        <section>
            <article>
                <h1>SHA</h1>
            </article>
            <article>
                <h2>Facebook</h2>
                <h2>Twitter</h2>
            </article>
        </section>
        <section>
            <article>
                <h1>ARE</h1>
            </article>
            <article>
                <h2>Stumble</h2>
                <h2>Dribbble</h2>
            </article>
        </section>
    </div>

body {
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	background: #003961;
}

div {
	width: 400px;
	height: 80px;
	margin: 200px auto;
}

div section {
	width: 50%;
	height: 80px;
	float: left;
}

div section:first-child:before {
	background: rgba(0,0,0,0.4);
	content: '';
	position: absolute;
	height: 50px;
	width: 170px;
	margin-left: 120px; /*box-shadow*/

-webkit-box-shadow: 0 0 12px rgba(0,0,0,0.3);
	-moz-box-shadow: 0 0 12px rgba(0,0,0,0.3);
	box-shadow: 0 0 12px rgba(0,0,0,0.3);
}

div section h1 {
	margin-top: 12px;
	overflow: hidden;
	width: 33px;
	color: #fff;
}

div section article {
	position: absolute;
	height: 50px;
	width: 100px;
	background: #00aeef; /*transition*/

-webkit-transition: all 300ms;
	-moz-transition: all 300ms;
	-o-transition: all 300ms;
	-ms-transition: all 300ms;
	transition: all 300ms;
	text-align: center;
}

div section article h2 {
	display: inline-block;
	width: 40px;
	height: 40px;
	background-image: url(https://i.imgur.com/vIIhi.png);
	background-repeat: no-repeat;
	margin: 0;
	padding: 0;
	overflow: hidden;
	margin-top: 6px;
	text-indent: -9999px;
	cursor: pointer;
}

div section:first-child article h2:nth-child(2) {
	background-position: -40px 0;
}

div section:last-child article h2:nth-child(1) {
	background-position: -80px 0;
}

div section:last-child article h2:nth-child(2) {
	background-position: -120px 0;
}

div section:first-child article:first-child {
	-webkit-border-top-left-radius: 8px;
	-webkit-border-bottom-left-radius: 8px;
	-moz-border-radius-topleft: 8px;
	-moz-border-radius-bottomleft: 8px;
	border-top-left-radius: 8px;
	border-bottom-left-radius: 8px;
}

div section:first-child article:first-child h1 {
	float: right;
	font-weight: 400;
	font-size: 20px;
}

div section:last-child article:first-child {
	-webkit-border-top-right-radius: 8px;
	-webkit-border-bottom-right-radius: 8px;
	-moz-border-radius-topright: 8px;
	-moz-border-radius-bottomright: 8px;
	border-top-right-radius: 8px;
	border-bottom-right-radius: 8px;
}

div section:last-child article:first-child h1 {
	text-indent: -6px;
	margin-top: 12px;
	font-size: 20px;
	font-weight: 300;
}

div section:first-child article:last-child {
	background: #0f0;
	margin-left: 150px; /*transform*/

-webkit-transform: rotateY(90deg);
	-moz-transform: rotateY(90deg);
	-o-transform: rotateY(90deg);
	-ms-transform: rotateY(90deg);
	transform: rotateY(90deg);
	background: -webkit-gradient(linear, left top, right top, color-stop(0%,#0082c1), color-stop(100%,#003961)); /* Chrome,Safari4+ */
/*linear-gradient*/
background: -webkit-gradient(linear,left top,right top,color-stop(#0082c1,0),color-stop(#003961,1)); /* Chrome10+,Safari5.1+ */
: ;
}

div section:last-child article:last-child {
	background: #0ff; /*transform*/

-webkit-transform: rotateY(-90deg);
	-moz-transform: rotateY(-90deg);
	-o-transform: rotateY(-90deg);
	-ms-transform: rotateY(-90deg);
	transform: rotateY(-90deg);
	margin-left: -50px;
	background: -webkit-gradient(linear, left top, right top, color-stop(0%,#003961), color-stop(100%,#0082c1)); /* Chrome,Safari4+ */
/*linear-gradient*/
background: -webkit-gradient(linear,left top,right top,color-stop(#003961,0),color-stop(#0082c1,1)); /* Chrome10+,Safari5.1+ */
: ;
}

div section:first-child article:first-child {
	margin-left: 100px;
}

div:hover section:first-child article:first-child {
	/*transform*/

-webkit-transform: rotateY(90deg);
	-moz-transform: rotateY(90deg);
	-o-transform: rotateY(90deg);
	-ms-transform: rotateY(90deg);
	transform: rotateY(90deg);
	margin-left: 60px;
}

div:hover section:last-child article:first-child {
	/*transform*/

-webkit-transform: rotateY(-90deg);
	-moz-transform: rotateY(-90deg);
	-o-transform: rotateY(-90deg);
	-ms-transform: rotateY(-90deg);
	transform: rotateY(-90deg);
	margin-left: 40px;
}

div:hover section:first-child article:last-child {
	/*transform*/

-webkit-transform: rotateY(0deg);
	-moz-transform: rotateY(0deg);
	-o-transform: rotateY(0deg);
	-ms-transform: rotateY(0deg);
	transform: rotateY(0deg);
	margin-left: 110px;
	background: #0082C1;
}

div:hover section:last-child article:last-child {
	/*transform*/

-webkit-transform: rotateY(0deg);
	-moz-transform: rotateY(0deg);
	-o-transform: rotateY(0deg);
	-ms-transform: rotateY(0deg);
	transform: rotateY(0deg);
	margin-left: 0;
	background: #0082C1;
}