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HTML

              
                <div id="wrapper">	
	<div id="washingMachine" class="isFilled isOpen">
		<div id="controls">READY</div>
		<div id="door"></div>
		<div id="tub">
			<span class="clothes"></span>
			<span class="clothes"></span>
			<span class="clothes"></span>
		</div>
	</div>
	
	<div id="playground">
		<button id="content">EMPTY</button>
		<button id="opening">CLOSE</button>
		<button id="power" disabled>START</button>
	</div>
</div>
              
            
!

CSS

              
                @import url('https://fonts.googleapis.com/css?family=Nova+Mono&display=swap');

// GLOBAL ―――――――――――――――――――――――――

* {
	box-sizing: border-box;
	padding: 0;
	margin: 0;
}

body {
	display: flex;
	height: 100vh;
	background:	#92bfd1;
	font-size: 14px;
	font-family: 'Nova Mono', monospace;
}

#wrapper {
	margin: auto;
	display: flex;
	flex-direction: column;
	align-items: center;
}


// VARIABLES (Have fun) ―――――――――――――――――――――――――

// Machine

$WM-width: 300px;
$WM-height: $WM-width + $WM-width / 3.4;
$WM-borderRadius: 15px;
$WM-topHeight: 70px;
$WM-bottomHeight: 30px;
$WM-roationSpeed: 0.6s; // If changed, need to be updated in the JS as well

// Colors

$WM-mainColor: #ececf4; // White
$WM-secondaryColor: #c4c4d2; // Light grey
$WM-tertiaryColor: #80819c; // Dark grey
$WM-tubBackground: #453e57;

// Effects

$WM-insetShadowColor: rgba($WM-secondaryColor, 0.3);
$WM-insetShadowSize: 15px;

// Controls

$WM-controlsRatio: 2.2; // Higher numbers produce smaller size
$WM-screenTextSize: 1em;
$WM-screenTextColor: lightgreen;

// Door

$WM-doorRatio: 1.5; // Higher numbers produce smaller size
$WM-doorBorderSize: 25px;


// WASHING-MACHINE ―――――――――――――――――――――――――

#washingMachine {
	background: $WM-mainColor;
	width: $WM-width;
	height: $WM-height;
	border-radius: $WM-borderRadius;
	border-top: 15px solid $WM-tertiaryColor;
	display: flex;
	align-items: center;
	justify-content: center;
	position: relative;
	overflow: hidden;
	box-shadow: inset -#{$WM-insetShadowSize} -#{$WM-insetShadowSize} 0 0 $WM-insetShadowColor;
	padding: ($WM-topHeight + 15px) 0 $WM-bottomHeight + 15px;

	&:before, &:after {
		content: "";
		position: absolute;
		border: 4px solid transparent;
		width: 150%;
	}
	
	&:before {
		border-bottom-color: $WM-secondaryColor;
		height: $WM-topHeight;
		top: 0;
		border-radius: 50%;
		box-shadow: inset 0 -#{$WM-insetShadowSize} 0 0 $WM-insetShadowColor;
	}

	&:after {
		border-top-color: $WM-secondaryColor;
		height: $WM-bottomHeight;
		bottom: 0;
	}

	#controls {
		$WM-roundButtonSize: $WM-topHeight / $WM-controlsRatio;
		$WM-elementsWidth: $WM-width / 5;
		$WM-shift: $WM-insetShadowSize + 15px;
		
		// Screen
	
		top: ($WM-topHeight - $WM-roundButtonSize) / 2;
		text-align: center;
		right: $WM-shift;
		background: #242527;
		color: $WM-screenTextColor;
		border-radius: 5px;
		padding: 3px 10px;
		font-weight: 500;
		font-size: $WM-screenTextSize;
		justify-content: center;
		
		&, &:before, &:after { position: absolute; }
		
		&, &:after {
			height: $WM-roundButtonSize - ($WM-roundButtonSize / 4);
			min-width: $WM-elementsWidth;
		}
		
		&, &:before {
			display: flex;
			align-items: center;
			transition: all 0.2s cubic-bezier(.56,.35,0,1.35);
		}
		
		// Round button

		&:before {
			content: "━━";
			font-size: 14px;
			color: $WM-tertiaryColor;
			box-shadow: inset 0px -#{$WM-insetShadowSize} 0px 0px $WM-insetShadowColor;
			height: $WM-roundButtonSize;
			width: $WM-roundButtonSize;
			border: 3px solid $WM-secondaryColor;
			border-radius: 100%;
			transform: rotate(0deg);
			left: calc(100% + #{$WM-shift - $WM-width / 2 - $WM-roundButtonSize / 2});
		}
		
		// Washing powder compartment
		
		&:after {
			content: "";
			left: calc(100% + #{$WM-shift - $WM-width + $WM-shift});
			background: $WM-insetShadowColor;
			border-radius: 3px 3px 10px 10px;
			border: 3px solid $WM-secondaryColor;
			box-shadow: inset 0 10px 0 0 $WM-secondaryColor;
		}
	}

	// Reused values ――

		$WM-tubBaseShadow: 0 0 0 7px $WM-insetShadowColor; // Light grey

		@function doorShadows($inside:transparent, $outside:transparent) {
			@return inset 5px 10px 0 0 $inside, 5px -1px 0 0  $outside;
		};

	// ――

	#door, #tub { transition: all 0.2s ease-in-out; }
	
	#door {
		width: $WM-width / $WM-doorRatio;
		height: $WM-width / $WM-doorRatio;
		border: $WM-doorBorderSize solid $WM-tertiaryColor;
		border-radius: 50%;
		position: absolute;
		z-index: 1;
		box-shadow: doorShadows(rgba(black, 0.1));
		transform-origin: 0% 0%;
		transform: rotateY(0deg);
		
		&:before, &:after {
			content: "";
			position: absolute;
			top: 50%;
			transform: translateY(-50%);
		}
		
		// Door handle
		
		&:after {
			background: darken($WM-tertiaryColor, 10%);
			height: 50%;
			width: 17%;
			right: 0;
			border-radius: 40% 30% 30% 40% / 50% 45% 45% 50%;
			transition: all 0.2s ease-in-out;
			z-index: 3;
		}
		
		// Reflection
		
		&:before {
			width: 60%;
			height: 60%;
			left: 0;
			right: 0;
			margin: auto;
			border-radius: 50%;
			border: 5px solid transparent;
			border-left: 15px solid white;
			transform: translateY(-50%) rotate(45deg);
			opacity: 0.2;
			box-shadow: inset -10px 10px 0 0 rgba(white, 0.2);
			border-radius: 40% 30% 30% 40% / 50%;
			z-index: 2;
		}
  }

	#tub {
		width: $WM-width / $WM-doorRatio - $WM-doorBorderSize;
		height: $WM-width / $WM-doorRatio - $WM-doorBorderSize;
		background: $WM-tubBackground;
		position: relative;
		border-radius: 50%;
		overflow: hidden;
		z-index: 0;
		box-shadow: $WM-tubBaseShadow;

		.clothes {
			position: absolute;
			opacity: 0;
			transition: all 0.1s ease-in-out;
		}

		.clothes:nth-child(1) {
			background: linear-gradient(#48873e, #7b9f17);
			width: 70%;
			height: 25%;
			bottom: 10%;
			right: -20%;
			transform: rotate(-20deg);
			border-radius: 49% 38% 65% 8% / 30% 12% 51% 36%;
		}

		.clothes:nth-child(2){
			background: linear-gradient(#c22323, #e15050);
			width: 100%;
			height: 20%;
			border-radius: 64% 40% 27% 47% / 63% 63% 32% 36%;
			bottom: 0;
		}

		.clothes:nth-child(3) {
			background: linear-gradient(#5a5589, #4f46b4);
			width: 70%;
			height: 25%;
			transform: rotate(40deg);
			border-radius: 41% 38% 71% 8% / 51% 36% 51% 24%;
			bottom: 0;
			left: -10%;
		}
	}

	// ACTIONS

	&.isOpen {
		#door {
			transform: rotateY(45deg);
			box-shadow: doorShadows($outside: lighten($WM-tertiaryColor, 20%));
			
			// Door handle
			&:after { box-shadow: 5px -1px 0 0 darken($WM-tertiaryColor, 20%); }
		}
		
		#tub { box-shadow: inset 5px 10px 0 0 rgba(black, 0.1), $WM-tubBaseShadow; }
	}

	&.isWashing {
		animation-name: shake;
		animation-duration: 100ms;
		animation-timing-function: ease-in-out;
		animation-iteration-count: infinite;
		
		#controls:before { transform: rotate(45deg); }
		
		#tub {
			animation-name: rotate;
			animation-duration: $WM-roationSpeed;
			animation-timing-function: linear;
			animation-iteration-count: infinite;
		}
	}

	&.isFilled #tub .clothes { opacity: 1; }

	&.isStarting {
		animation-duration: 100ms * 2;
		animation-timing-function: cubic-bezier(0,-0.01,.61,.01);
		
		#tub {
			animation-duration: $WM-roationSpeed * 2;
			animation-timing-function: cubic-bezier(0,-0.01,.61,.01);
		}
	}
}


// ANIMATIONS ―――――――――――――――――――――――――

@keyframes shake {
  0%, 100% { transform:  translate(0, 0) rotate(0); }
  25%  { transform:  translate(-1.5px, 1.5px) rotate(0.5deg); }
  50%  { transform:  translate(-0.5px, -0.5px) rotate(0.5deg); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}


// PLAYGROUND ―――――――――――――――――――――――――

#playground {
	margin-top: 25px;
	width: $WM-width;
	display: flex;
	
	button {
		flex: 1;
		background: #ececf4;
		border: none;
		outline: none;
		border-radius: 6px;
		padding: 7px 10px;
		box-shadow: -1px 2px 0 0 rgba(black, 0.2);
		transition: background 0.2s ease-in-out;
		font: inherit;
		font-size: 0.8em;
		
		&#opening { margin: 0 15px; }
		
		&:hover:not(:disabled) {
			background: white;
			cursor: pointer;
		}
		
		&::-moz-focus-inner { border:0; }
		&:active:not(:disabled) { box-shadow: 0px 1px 0 0 rgba(black, 0.2); }
	}
}
              
            
!

JS

              
                // VARIABLES ―――――――――――――――――――――――――

const washSpeed = 600; // If changed, need to be updated in the CSS as well
const washingMachine = document.getElementById('washingMachine');
const screen = document.getElementById('controls');

const status = {
	opening: {
		isActive: true,
		statusClass: 'isOpen',
		controller: document.getElementById('opening'),
		controllerLabel: ["CLOSE", "OPEN"]
	},
	content: {
		isActive: true,
		statusClass:'isFilled',
		controller: document.getElementById('content'),
		controllerLabel: ["EMPTY", "FILL"]
	},
	power: {
		isActive: false,
		statusClass: 'isWashing',
		controller: document.getElementById('power'),
		controllerLabel: ["STOP", "START"]
	}
};


// PLAYGROUND ―――――――――――――――――――――――――

for (let action in status) {
	const { statusClass, controller, controllerLabel } = status[action];
	
	controller.addEventListener('click', function(event) {
		const { isActive } = status[action];
		washingMachine.classList.toggle(statusClass);
		this.innerHTML = controllerLabel[isActive*1];
		
		if(action === "power" && !isActive) { // Slow start
			washingMachine.classList.add(statusClass);
			washingMachine.classList.add("isStarting");
			setTimeout(() => { washingMachine.classList.remove("isStarting"); }, washSpeed * 2);
		}
		
		status[action].isActive = !isActive;
		
		setTimeout(function() {
			updateMachine();
		}, 100); // Timeout needed because of a bug on FF when updating innerHTML
	});
}

function updateMachine() {	
	const { opening, content, power } = status;
	
	// Update playground
	
	opening.controller.disabled = power.isActive;
	content.controller.disabled = !opening.isActive;
	power.controller.disabled = opening.isActive || !content.isActive;
	
	// Update screen text
	
	if(power.isActive) {
		screen.innerHTML = "💦"
	} else if(!content.isActive) {
		screen.innerHTML = "EMPTY";
	} else if (opening.isActive) {
			screen.innerHTML = "🙃";
	} else {
		screen.innerHTML = "READY";
	}
}
              
            
!
999px

Console