<div class="content-wrapper">
      <div class="button --button-left is-rotated" data="is-light"><span>Off</span>
        <div class="button-face-bottom"></div>
      </div>
      <div class="button --button-right" data="is-dark"><span>On</span>
        <div class="button-face-bottom"></div>
      </div>
    </div>
$color1: #0B1821;
$color2: #FCE7B2;
$color1_light: lighten($color1, 5%);
$color2_light: lighten($color2, 5%);
$color5: rgba(109, 97, 100, 1);
$color_success: #23C057;
$color_text: rgba(black,.75);
$color_text_light: rgba(lighten($color5,15%),.75);
$color_bg: #C8D9E7;
$color_border: rgba(lighten($color1,50%),1);
@import url( 'https://fonts.googleapis.com/css?family=Rufina|Open+Sans:400,700');

body,
html {
	width: 100%;
	height: 100%;
	margin: 0;
	font-family: "Open Sans";
	color: $color_text;
	background-color: $color2;
	overflow: hidden;
	font-size: 1em;
	font-style: normal;
	-webkit-appearance: none;
	outline: none;
	text-rendering: geometricPrecision;
	perspective: 1000px;
	transition: all 0.4s ease-in-out;

	&.is-light {
		background-color: lighten($color2, 5%);
	}

	&.is-dark {
		background-color: lighten($color1, 5%);
	}
}

.content-wrapper {
	width: 350px;
	height: 100px;
	border-radius: 5px;
	position: absolute;
	//background-color: rgb(250,250,250);
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%) rotateX(0deg) rotateZ(0deg);
	transition: all 0.395s ease-in-out;
	padding: 0;
	box-sizing: border-box;
	line-height: 30px;
	font-size: 14px;
	display: flex;
	transform-style: preserve-3d;
}

.button {
	font-weight: 700;
	flex-grow: 1;
	display: flex;
	justify-content: center;
	align-items: center;
	font-size: 1.5em;
	text-transform: uppercase;
	background-color: white;
	transform-style: preserve-3d;
	//box-shadow: 0 0 4px 0 rgba(black, .75);
	position: relative;
	cursor: pointer;
	transform-style: preserve-3d;
	transition: all 0.4s ease;
	border: solid 1px rgba(black, .25);
	box-sizing: border-box;

	span {
		transition: all 0.4s ease;
	}

	&.--button-left {
		transform-origin: right;
		background-color: $color1;
		color: white;

		&.is-rotated {
			transform: rotateY(35deg);

			span {
				text-shadow: 0 0 4px rgba($color2, .5);
			}

			.button-face-bottom {
				transform: rotateY(90deg) scaleY(1.08) translateX(78px) translateZ(0px);
			}
		}

		.button-face-bottom {
			height: 100%;
			width: 50px;
			position: absolute;
			background: lighten($color1,10%);
			top: 0;
			left: 0;
			border: solid 1px rgba(black, .5);
			box-sizing: border-box;
			transition: all 0.4s ease;
			transform: rotateY(90deg) translateX(30px) translateZ(-20px);
		}
	}

	&.--button-right {
		transform-origin: left;
		background-color: $color2;

	

		&.is-rotated {
			transform: rotateY(-35deg);

			span {
				text-shadow: 0 0 4px rgba($color1, .5);
			}

			.button-face-bottom {
				transform: rotateY(100deg) scaleY(1.13) translateX(108px) translateZ(0px);
			}
		}

		.button-face-bottom {
			height: 100%;
			width: 50px;
			position: absolute;
			background: darken($color2,40%);
			top: 0;
			right: 0;
			border: solid 1px rgba(black, .25);
			box-sizing: border-box;
			transition: all 0.4s ease;
			transform: rotateY(90deg) translateX(30px) translateZ(20px);
		}
	}
}
View Compiled
$(".button").click(function (e) {
	if ($(this).hasClass("is-rotated")) {
		$(".button").addClass("is-rotated");
		$(this).removeClass("is-rotated");
	}
	$("body").removeClass();
	$("body").addClass($(".button.is-rotated").attr("data"));
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js