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HTML 

              
                <div class="container">
	<div id="house" class="house">
		<div class="house-base">
			<div class="house-base-detail"></div>
			<div class="house-door-wrapper">
				<div class="house-door">
					<div class="house-door-window"></div>
					<div class="house-door-detail"></div>
				</div>
			</div>
			<div class="house-window-wrapper">
				<div class="house-window house-window-left"></div>
				<div class="house-window house-window-right"></div>
			</div>
		</div>
		<div class="house-sandwich"></div>
		<div class="house-upper">
			<div class="house-upper-detail"></div>
			<div class="house-upper-shadow"></div>
			<div class="house-window"></div>
			<div class="house-window-wrapper">
				<div class="house-window house-window-left"></div>
				<div class="house-window house-window-right"></div>
			</div>
		</div>
		<div class="house-roof">
			<div class="house-roof-side house-roof-side-left"></div>
			<div class="house-roof-side house-roof-side-right"></div>
			<div class="house-roof-detail"></div>
		</div>
	</div>
</div>
<div class="color-controls">
	<p>
		Select a colour
	</p>
	<div class="color-controls-button-container">
		<button class="color-controls-button pallet active" data-color="pallet"></button>
		<button class="color-controls-button viridian" data-color="viridian"></button>
		<button class="color-controls-button pewter" data-color="pewter"></button>
		<button class="color-controls-button cerulean" data-color="cerulean"></button>
		<button class="color-controls-button vermillion" data-color="vermillion"></button>
		<button class="color-controls-button lavender" data-color="lavender"></button>
		<button class="color-controls-button celadon" data-color="celadon"></button>
		<button class="color-controls-button saffron" data-color="saffron"></button>
		<button class="color-controls-button fuschia" data-color="fuschia"></button>
		<button class="color-controls-button cinnabar" data-color="cinnabar"></button>
	</div>
</div>
!

CSS 

              
                @font-face {
	font-family: 'Pokemon GB';
	src: url('https://cdn.rawgit.com/Superpencil/pokemon-font/d36892e5/fonts/pokemon-font.eot');
	src: url('https://cdn.rawgit.com/Superpencil/pokemon-font/d36892e5/fonts/pokemon-font.woff');
	font-weight: 400;
}

$black: #555;
$white: #fff;

$colors: (
	pallet: #b888f8,
	viridian: #7ff71f,
	pewter: #909078,
	cerulean: #2840f8,
	vermillion: #f89800,
	lavender: #c820f8,
	celadon: #28f828,
	saffron: #f8f800,
	fuschia: #f87878,
	cinnabar: #f84040
);

$secondary-color: #58b8f8;

$primary-font: 'Pokemon GB', monospace;

$pixel: 0.25rem;
$roof-skew: 24deg;

@function calcRelativeSize($val) {
	@return calc(100% - (#{$pixel} * #{$val}));
}

@mixin windowDeets($shineSize, $shadowHeight: $pixel, $shineColor: var(--primary-color), $shadowColor: var(--secondary-color)) {
	&::before,
	&::after {
		content: '';
		position: absolute;
	}

	&::before {
		top: 0;
		left: 0;
		height: 0;
		width: 0;
		border-left: solid ($pixel * $shineSize) $shineColor;
		border-top: solid ($pixel * $shineSize) $shineColor;
		border-bottom: solid ($pixel * $shineSize) transparent;
		border-right: solid ($pixel * $shineSize) transparent;
	}

	&::after {
		bottom: 0;
		height: $shadowHeight;
		width: 100%;
		background-color: $shadowColor;
	}
}

@mixin pokeFont($size: 1) {
	font-family: 'Pokemon GB', monospace;
	font-weight: 400;
	font-size: 10px * $size;
	text-transform: uppercase;
	font-smooth: never;
  -webkit-font-smoothing: none;
}

@mixin dialogStyles() {
	padding: $pixel * 3;
	border-radius: $pixel * 2;
	border: double $pixel * 3 $black;
	box-shadow: inset 0 $pixel 0 $black, 0 $pixel 0 $black;
	background-color: var(--base-color);
	color: $black;
}

* { box-sizing: border-box; }
:root {
	--base-color: #{$white};
	--primary-color: #{map-get($colors, pallet)};
	--secondary-color: #{$secondary-color};
}
body {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 100vh;
	background-color: #eaeaea;
	font-family: $primary-font;
	font-size: 16px;
	line-height: 1.875em;
}
.container {
	flex: 0 0 auto;
}

.house {
	position: relative;
	
	&::before {
		content: '';
		position: absolute;
		left: -$pixel * 4;
		width: calc(100% + #{$pixel} * 8);
		height: $pixel * 16;
		bottom: -$pixel;
		border-radius: $pixel * 2;
		background-color: var(--primary-color);
	}
	
	@each $color, $val in $colors {
		&.#{$color} {
			--primary-color: #{$val};
		}
	}
	
	&-base {
		position: relative;
		height: $pixel * 26;
		width: $pixel * 54;
		border: solid $pixel $black;
		border-radius: $pixel * 2;
		background-color: var(--base-color);
		overflow: hidden;
		
		&::after {
			content: '';
			position: absolute;
			bottom: 0;
			width: calc(100% - (#{$pixel} * 2));
			height: $pixel * 2;
			border-top: solid $pixel var(--primary-color);
			border-left: solid $pixel var(--primary-color);
			border-right: solid $pixel var(--primary-color);
			background-color: var(--secondary-color);
		}
		
		.house {
			&-window-wrapper {
				bottom: $pixel * 6;
				left: $pixel * 26;
			}
		}
		
		&-detail {
			position: absolute;
			z-index: 1;
			bottom: $pixel * 5;
			height: $pixel;
			background-color: var(--primary-color);
			width: 100%;
			
			&::before,
			&::after {
				content: '';
				position: absolute;
				left: 50%;
				width: calcRelativeSize(4);
				height: $pixel;
				background-color: var(--primary-color);
				transform: translateX(-50%);
			}
			
			&::before {
				top: -$pixel * 4;
			}
			
			&::after {
				top: -$pixel * 8;
			}
		}
	}
		
	&-door {
		position: absolute;
		bottom: 0;
		left: $pixel;
		height: 100%;
		width: calcRelativeSize(2);
		border: solid $pixel $black;
		border-bottom: 0;
		background-color: var(--secondary-color);
		
		&-window {
			position: absolute;
			top: $pixel;
			left: $pixel;
			height: $pixel * 6;
			width: calcRelativeSize(2);
			border: solid $pixel $black;
			background-color: $white;
			
			@include windowDeets(2);
		}
		
		&-detail {
			position: absolute;
			left: $pixel;
			bottom: $pixel;
			height: $pixel * 4;
			width: calcRelativeSize(2);
			border: solid $pixel $black;
			border-top: 0;

			&::after {
				content: '';
				position: absolute;
				top: 0;
				left: $pixel;
				width: calcRelativeSize(4);
				height: 100%;
				border-left: solid $pixel $black;
				border-right: solid $pixel $black;
			}
		}
		
		&-wrapper {
			position: absolute;
			z-index: 3;
			bottom: 0;
			left: $pixel * 10;
			height: $pixel * 14;
			width: $pixel * 16;
			border-top: solid $pixel var(--primary-color);
			border-left: solid $pixel var(--secondary-color);
			border-right: solid $pixel var(--secondary-color);
			background-color: $white;
		}
	}
	
	&-window {
		position: relative;
		height: $pixel * 7;
		width: $pixel * 8;
		border: solid $pixel $black;
		background-color: $white;

		@include windowDeets(2.5);
		
		&-wrapper {
			position: absolute;
			z-index: 4;
			display: flex;
		}
	}
	
	&-sandwich {
		position: absolute;
		z-index: 2;
		bottom: $pixel * 15;
		left: -$pixel * 2;
		height: $pixel * 8;
		width: $pixel * 58;
		border: solid $pixel $black;
		box-shadow: inset ($pixel * 4) 0 0 var(--primary-color), inset (-$pixel * 4) 0 0 var(--primary-color);
		background-color: var(--secondary-color);
	}
	
	&-upper {
		position: absolute;
		z-index: 3;
		bottom: $pixel * 17;
		left: -$pixel;
		height: $pixel * 15;
		width: $pixel * 56;
		border: solid $pixel $black;
		background-color: var(--base-color);
		
		&::after {
			content: '';
			position: absolute;
			bottom: 0;
			left: $pixel * 3;
			width: calcRelativeSize(6);
			height: $pixel * 4;
			background-color: var(--primary-color);
		}
		
		.house {
			&-window-wrapper {
				bottom: $pixel * 5;
				left: $pixel * 26;
			}
		}
		
		> .house-window {
			position: absolute;
			z-index: 3;
			bottom: $pixel * 5;
			left: $pixel * 12;
		}
		
		&-detail {
			position: absolute;
			z-index: 1;
			bottom: 0;
			left: 0;
			height: $pixel;
			width: 100%;
			background-color: var(--primary-color);
			
			&::before,
			&::after {
				content: '';
				position: absolute;
				left: 0;
				height: $pixel;
			}
			
			&::before {
				width: calcRelativeSize(6);
				bottom: $pixel * 4;
				border-left: solid ($pixel * 3) var(--primary-color);
				border-right: solid ($pixel * 3) var(--primary-color);
				background-color: var(--secondary-color);
			}
			
			&::after {
				left: $pixel * 20;
				width: $pixel * 8;
				bottom: $pixel * 8;
				background-color: var(--primary-color);
			}
		}
		
		&-shadow {
			position: absolute;
			z-index: 1;
			top: 0;
			left: 0;
			height: $pixel;
			width: 100%;
			background-color: var(--primary-color);
			
			&::before,
			&::after {
				content: '';
				position: absolute;
				width: $pixel * 13;
				height: $pixel * 5;
				background-color: var(--primary-color);
			}
			
			&::before {
				transform: skewY(-$roof-skew);
			}
			
			&::after {
				right: 0;
				transform: skewY($roof-skew);
			}
		}
	}
	
	&-roof {
		position: absolute;
		z-index: 5;
		bottom: $pixel * 33;
		left: $pixel * 10;
		width: $pixel * 34;
		height: $pixel * 14;
		border-top: solid $pixel $black;
		border-bottom: solid $pixel $black;
		background-color: var(--primary-color);
		
		&::before {
			content: '';
			position: absolute;
			bottom: -$pixel * 3;
			width: 100%;
			height: $pixel;
			border-bottom: solid $pixel $black;
			background-color: var(--secondary-color);
		}
			
		&-side {
			content: '';
			position: absolute;
			top: $pixel * 2.5;
			width: $pixel * 15;
			height: $pixel * 14;
			border-top: solid $pixel $black;
			border-bottom: solid $pixel $black;
			background-color: var(--secondary-color);
		
			&::before {
				content: '';
				position: absolute;
				bottom: -$pixel * 3;
				width: calcRelativeSize(1);
				height: $pixel;
				border-bottom: solid $pixel $black;
				background-color: var(--secondary-color);
			}

			&-left {
				right: 100%;
				border-top-left-radius: $pixel * 2;
				border-bottom-left-radius: $pixel * 2;
				border-left: solid $pixel $black;
				box-shadow: inset $pixel $pixel 0 var(--base-color);
				transform: skewY(-$roof-skew);
					
				&::before {
					border-bottom-left-radius: $pixel * 2;
					border-left: solid $pixel $black;
				}
			}

			&-right {
				left: 100%;
				border-top-right-radius: $pixel * 2;
				border-bottom-right-radius: $pixel * 2;
				border-right: solid $pixel $black;
				box-shadow: inset (-$pixel) $pixel 0 var(--base-color);
				transform: skewY($roof-skew);
					
				&::before {
					right: 0;
					border-bottom-right-radius: $pixel * 2;
					border-right: solid $pixel $black;
				}
			}
		}
		
		&-detail {
			position: absolute;
			bottom: $pixel * 4;
			left: 0;
			width: 100%;
			height: $pixel;
			background-color: var(--secondary-color);
			
			&::before,
			&::after {
				content: '';
				position: absolute;
				left: 0;
				width: 100%;
				height: $pixel;
			}
			
			&::before {
				bottom: $pixel * 4;
				background-color: var(--secondary-color);
			}
			
			&::after {
				bottom: $pixel * 7;
				background-color: var(--base-color);
			}
		}
	}
}

.color-controls {
	position: absolute;
	z-index: 99;
	left: 50%;
	bottom: $pixel * 3;
	max-width: $pixel * 150;
	width: 100%;
	margin-top: $pixel * 5;
	transform: translateX(-50%);
	
	@include dialogStyles;
	
	p {
		@include pokeFont(2);
	}
	
	&-button {
		flex-shrink: 0;
		padding: 0;
		margin: $pixel $pixel * 3;
		height: $pixel * 6;
		width: $pixel * 6;
		// border-radius: $pixel * 2;
		border: solid $pixel $black;
		cursor: pointer;
		
		&:focus {
			outline: 0;
		}
		
		&:hover {
			&::before {
				transform: translateY(0);
				opacity: 1;
				visibility: visible;
			}
		}
		
		&::before {
			content: attr(data-color);
			position: absolute;
			right: -$pixel * 3;
			bottom: calc(100% + (#{$pixel} * 6));
			transform: translateY($pixel);
			opacity: 0;
			visibility: hidden;
			transition: 0.25s;
			
			@include pokeFont(2);
			@include dialogStyles;
		}
		
		&::after {
			content: '';
			position: absolute;
			width: 0;
			height: 0;
			border-style: solid;
			border-width: $pixel * 2 0 $pixel * 2 $pixel * 2;
			border-color: transparent transparent transparent $black;
			transform: translate(-250%, -50%);
			opacity: 0;
			transition: 0.25s;
		}
		
		@each $color, $val in $colors {
			&.#{$color} {
				background-color: $val;
			}
		}
		
		&.active {
			// box-shadow: 0 $pixel 0 $black;
			
			&::after {
				transform: translate(-300%, -50%);
				opacity: 1;
			}
		}
		
		&-container {
			display: flex;
			flex-wrap: wrap;
			justify-content: center;
			margin-top: $pixel * 2;
		}
	}
}
!

JS 

              
                console.clear();

const buttons = [...document.querySelectorAll('.color-controls-button')];
const house = document.getElementById('house');

buttons.forEach(button => button.addEventListener('click', () => {
	updateColor(button)																									
}));

function updateColor(button) {
	const color = button.getAttribute('data-color');
	
	house.className = 'house';
	house.classList.add(color);
	
	document.querySelector('.active').classList.remove('active');
	button.classList.add('active');
}
!
999px

Console