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HTML

              
                <div class="container">
	<!-- 	<img src="https://cdn.dribbble.com/users/426215/screenshots/5321869/toggle1.gif" alt=""> -->
	<input type="checkbox" id="toggle-checkbox" class="toggle-checkbox">
	<label for="toggle-checkbox" class="toggle-wrapper">
		<div class="toggle-thumb">
			<div class="crater-1"></div>
			<div class="crater-2"></div>
			<div class="crater-3"></div>
		</div>

		<div class="toggle-container">
			<div class="toggle-night">
				<div class="astronaut"></div>
				<ul class="stars">
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
				</ul>
			</div>

			<div class="toggle-day">
				<div class="surfer"></div>
				<ul class="waves">
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
					<li></li>
				</ul>
			</div>	
		</div>
	</label>
	<p class="inspired-by-day">Inspired by dribbble from <a href="https://dribbble.com/shots/5321869-Playing-with-InVision-Studio" target="_Blank">Bojan Mesar</a></p>
	<p class="inspired-by-night">Inspired by dribbble from <a href="https://dribbble.com/shots/5321869-Playing-with-InVision-Studio" target="_Blank">Bojan Mesar</a></p>
</div>
              
            
!

CSS

              
                $toggle-h: 20rem;
$toggle-w: 50rem;
$thumb-size: $toggle-h*1.1;

$crater1-w: 4.1;
$crater1-h: 3.6;
$crater2-w: 3.8;
$crater2-h: 4;
$crater3-w: 2.1;
$crater3-h: 1.5;

$wave-size: $thumb-size*0.35;
$star-size: 0.6rem;

$ocean-color:#40B5F8;

:root{
	//day
	--thumb-color:#FFCC33;
	--toggle-h:#{$toggle-h};
	--toggle-w:#{$toggle-w};
	--thumb-size:#{$thumb-size};

	--crater1-w: #{$crater1-w};
	--crater1-h: #{$crater1-h};
	--crater2-w: #{$crater2-w};
	--crater2-h: #{$crater2-h};
	--crater3-w: #{$crater3-w};
	--crater3-h: #{$crater3-h};
	
	--wave-size: #{$wave-size};
	--star-size: #{$star-size};
}

*{
	transition:1s all ease-in-out;
}

HTML{
	font-size:10px;
}

.container{
	width:100vw;
	height:100vh;
	position:relative;
	background:#D6E7F7;
	font-family:'Pacifico', cursive;
	will-change: color;
	
	.inspired-by {
		&-day {
			left: 0;
		}
		&-night {
			font-family:'Staatliches', cursive;
			letter-spacing:0.1rem;
			color:#FFF;
			left: -$toggle-w*2;
			opacity: 0;
		}
	}
	
	&.nighttime{
		background-color:#151D29;
		.inspired-by-night {
			
		}
		A{
			box-shadow:none;
		}
	}
	
	P, A{
		//transition:none;
	}
	P{
		color:#000;
		font-size:1.7rem;
		height:3rem;
		display:flex;
		align-items:center;
		justify-content:center;
		position:absolute;
		top:calc(var(--toggle-h) * 1.5);
		right:0;
		bottom:0;
		left:0;
		margin:auto;
		text-shadow:0.1rem 0.1rem 0.1rem rgba(255, 255, 255, 1);
		 -webkit-font-smoothing: antialiased;
		-moz-osx-font-smoothing: grayscale;
		a{
			color:gold;
			margin-left:0.5rem;
			text-shadow: 0rem 0rem 0.2rem rgba(0, 0, 0, 0.5);
		}
	}
	@media (max-width: 849px) {
		$toggle-h: $toggle-h/2;
		$toggle-w: $toggle-w/2;
		$thumb-size: $thumb-size/2;
		$wave-size: $wave-size/2;
		$star-size: $star-size/2;
		--toggle-h: #{$toggle-h};
		--toggle-w: #{$toggle-w};
		--thumb-size: #{$thumb-size};
		--wave-size: #{$wave-size};
		
		--star-size: #{$star-size};
		
		.toggle-thumb {
			width: $thumb-size;
			width: var(--thumb-size);
			height: $thumb-size;
			height: var(--thumb-size);
			.crater {
				&-1, &-2, &-3 {
					$crater1-w: $crater1-w/2;
					--crater1-w: #{$crater1-w};
					$crater1-h: $crater1-h/2;
					--crater1-h: #{$crater1-h};
					$crater2-w: $crater2-w/2;
					--crater2-w: #{$crater2-w};
					$crater2-h: $crater2-h/2;
					--crater2-h: #{$crater2-h};
					$crater3-w: $crater3-w/2;
					--crater3-w: #{$crater3-w};
					$crater3-h: $crater3-h/2;
					--crater3-h: #{$crater3-h};
				}
			}
		}

	}
}

.toggle{
	&-wrapper{
		position:absolute;
		width:$toggle-w;
		width:var(--toggle-w, #{$toggle-w});
		height:$toggle-h;
		height:var(--toggle-h, #{$toggle-h});
		top:0;
		right:0;
		bottom:0;
		left:0;
		margin:auto;
		border-radius:$toggle-h;
		border-radius:var(--toggle-h, #{$toggle-h});
		display:flex;
		align-items:center;
		cursor:pointer;
	}
	&-container{
		position:absolute;
		overflow:hidden;
		width:100%;
		height:100%;
		border-radius:$toggle-h;
		border-radius:var(--toggle-h, #{$toggle-h});
	}
	&-thumb{
		width:$thumb-size;
		width:var(--thumb-size);
		height:$thumb-size;
		height:var(--thumb-size);
		border-radius:50%;
		position:absolute;
		z-index:10;
		background:gold;
		//multiple blank box-shadows to fully support the transition
		box-shadow:0 0 5rem 0.5rem gold,
		inset 0 0 0 0.5rem rgba(#c5c6c5, 0),
		inset 0 0 0 0.1rem rgba(#cecece, 0),
		inset 0 0 0 0.1rem rgba(#d6d6d6, 0),
		inset 0 0 0 0.2rem rgba(#dedede, 0),
		inset 0 0 0 0.2rem rgba(#e7e7e8, 0),
		inset 0 0 0 0.3rem rgba(#e7e7e8, 0);
		left:-0.6rem;
		transform:rotate(-270deg);
		.crater{
			&-1, &-2, &-3{
				background:#E7E7E8;
				background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAHUlEQVQYV2O8detWmpqa2iwYzcjAwMCALMhIUAUAAJId7b0H06UAAAAASUVORK5CYII=);
				position:absolute;
				border-radius:50%;
				box-shadow:inset 0.1rem 0.1rem 0.3rem 0.1rem #D6D6D6;
				opacity:0;
			}
			&-1{
				width: #{$crater1-w}rem;
				width:calc(var(--crater1-w) * 1rem);
				height: #{$crater1-h}rem;
				height: calc(var(--crater1-h) * 1rem);
				top:15%;
				left:25%;
				transform:skew(-15deg);
			}
			&-2{
				width: #{$crater2-w}rem;
				width:calc(var(--crater2-w) * 1rem);
				height: #{$crater2-h}rem;
				height: calc(var(--crater2-h) * 1rem);
				top:50%;
				right:10%;
			}
			&-3{
				width: #{$crater3-w}rem;
				width:calc(var(--crater3-w) * 1rem);
				height: #{$crater3-h}rem;
				height: calc(var(--crater3-h) * 1rem);
				bottom:15%;
				left:30%;
			}
		}
	}
	&-day, &-night{
		height:100%;
		width:100%;
		position:absolute;
		top:0;
		border-radius:$toggle-h;
		border-radius:var(--toggle-h, #{$toggle-h});
		overflow:hidden;
	}
	&-day{
		left:0;
		opacity:1;
		.waves{
			$wave-no:7;
			list-style:none;
			height:100%;
			width:100%;
			background:$ocean-color;
			position:absolute;
			//top: 0;
			bottom:0;
			right:0;
			margin:auto;
			white-space:nowrap;
			text-align:right;
			li{
				width:$wave-size;
				width: var(--wave-size);
				height:80%;
				border-radius:0 0 var(--wave-size) var(--wave-size);
				display:inline-block;
				background:red;
				position:relative;
				margin:0 -1rem;
				margin: 0 calc(var(--wave-size) / -10);
				background:linear-gradient(to bottom, #99CCFF 0%, #FFFFFF 100%);
			}
		}
		.surfer{
			width:3.5rem;
			height:3.5rem;
			background-image:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/66763/surfer1.png);
			background-size:cover;
			position:absolute;
			right:30%;
			bottom:40%;
			z-index:10;
			//transform: scale(-1, 1)
		}
	}
	&-night{
		left:calc(calc(100% - calc(var(--thumb-size) - 0.6rem)) * -1);;
		background:linear-gradient(to bottom, #003333 0%, #6666CC 100%);
		opacity:0;
		.astronaut{
			width:4.6rem;
			height:3.5rem;
			background-image:url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/66763/astronaut.png);
			background-size:cover;
			position:absolute;
			left:-5%;
			bottom:5%;
			z-index:10;
			transform:rotate(-360deg);
		}
		.stars{
			//background: red;
			width:100%;
			height:100%;
			position:absolute;
			top:0;
			left:0;
			li{
				width:$star-size;
				width: var(--star-size);
				height:$star-size;
				height: var(--star-size);
				background:#E7DEC7;
				position:absolute;
				transform:rotate(45deg) translateY(-10000%) translateX(-5000%);
				&:nth-child(1){
					top:18%;
					left:23.60%;
					opacity:1;
				}
				&:nth-child(2){
					top:32.8%;
					left:11.60%;
					opacity:0.8;
				}
				&:nth-child(3){
					top:28%;
					left:41.60%;
					opacity:0.8;
				}
				&:nth-child(4){
					top:47.8%;
					left:35.60%;
					opacity:0.6;
				}
				&:nth-child(5){
					top:58%;
					left:19.60%;
					opacity:0.6;
				}
				&:nth-child(6){
					top:68%;
					left:47.60%;
					opacity:0.4;
				}
				&:nth-child(7){
					top:73%;
					left:7.60%;
					opacity:0.2;
				}
				&:nth-child(8){
					top:78%;
					left:29.5%;
					opacity:0.2;
				}
			}
		}
	}
	&-checkbox{
		display:none;
		&:checked{
			& + .toggle-wrapper{
				.toggle-thumb{
					transform:rotate(0);
					left:calc(100% - calc(#{$thumb-size} - 0.6rem));
					left:calc(100% - calc(var(--thumb-size) - 0.6rem));
					background-color:#F7F7F7;
					box-shadow:0 0 0 0 gold,
					inset 0 0 0 0.5rem rgba(#c5c6c5, 0.5),
					inset 0 0 0 1.0rem rgba(#cecece, 0.5),
					inset 0 0 0 1.5rem rgba(#d6d6d6, 0.5),
					inset 0 0 0 2.0rem rgba(#dedede, 0.5),
					inset 0 0 0 2.5rem rgba(#e7e7e8, 0.5),
					inset 0 0 0 3.0rem rgba(#e7e7e8, 0.5);
					.crater-1, .crater-2, .crater-3{
						opacity:1;
					}
				}
				.toggle-day{
					//day not visible
					left:calc(100% - calc(var(--thumb-size) - 0.6rem));
					opacity:0;
					.surfer{
						bottom:-100%;
					}
					.waves{
						height:200%;
						bottom:-100%;
					}
				}
				.toggle-night{
					//night visible
					left:0;
					opacity:1;
					.astronaut{
						left:25%;
						bottom:35%;
						z-index:10;
						transform:rotate(15deg);
					}
					.stars li{
						transform:rotate(45deg);
					}
				}
			}
		& ~ .inspired-by {
			&-day {
				left: $toggle-w*2;
				opacity: 0;
			}
			&-night {
				left: 0;
				opacity: 1;
			}
		}
		}
	}
}

              
            
!

JS

              
                //inspired by https://dribbble.com/shots/5321869-Playing-with-InVision-Studio

$('#toggle-checkbox').click(function(){
	$('.container').toggleClass('nighttime');
})
              
            
!
999px

Console