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HTML 

              
                .container
	h1 Send a postcard
	.info *
		.more-info
			.image
				img(src="https://assets.codepen.io/567707/palette-reputation.png" alt="Taylor Swift album")
			p Part of the 
				a(href="https://codepen.io/collection/XPxJmz") UI Designs inspired by Taylor Swift Album Covers
				|  collection. This is 
				em reputation (2017)
				|.
	
	.inner
		.postcard
			<svg class="close-this" xmlns="http://www.w3.org/2000/svg" id="Capa_1" enable-background="new 0 0 413.348 413.348" height="512" viewBox="0 0 413.348 413.348" width="512"><path d="m413.348 24.354-24.354-24.354-182.32 182.32-182.32-182.32-24.354 24.354 182.32 182.32-182.32 182.32 24.354 24.354 182.32-182.32 182.32 182.32 24.354-24.354-182.32-182.32z"/></svg>
			.postcard__chosen
				img.chosen-card(src="https://assets.codepen.io/567707/cat-molly.png")
				.name Molly
			.postcard__back
				textarea Write your message here... &#13;&#10; &#13;&#10; &#13;&#10;&#13;&#10;p/s this doesn't actually send anything :(
				.address
					input(type="text" placeholder="Receiver's name")
					input(type="email" placeholder="Receiver's email")
					button Send
					
					
					img.stamp(src="https://assets.codepen.io/567707/icon-stamp.svg" alt="paw stamp")
					
		.cover.cover__cat
			a(data-type="cat").js-cat.circle Cat
			img(src="https://assets.codepen.io/567707/pattern-cat.jpg" alt="Cat Pattern")
			.options.cat-options
				.options__item(data-name="Molly")
					img(src="https://assets.codepen.io/567707/cat-molly.png" alt="Cat")
				.options__item(data-name="Kato")
					img(src="https://assets.codepen.io/567707/cat-kato.jpg" alt="Cat")
				.options__item(data-name="Haru")
					img(src="https://assets.codepen.io/567707/cat-underscore.png" alt="Cat")
				.options__item(data-name="Whiskey")
					img(src="https://assets.codepen.io/567707/cat-whiskey.jpg" alt="Cat")
		.cover.cover__dog
			a(data-type="dog").js-dog.circle Dog
			img(src="https://assets.codepen.io/567707/pattern-dog.jpg" alt="Dog Pattern")
			.options.dog-options
				.options__item(data-name="Joey")
					img(src="https://assets.codepen.io/567707/dog-joey.png" alt="Dog")
				.options__item(data-name="Fred")
					img(src="https://assets.codepen.io/567707/dog-pom-2.png" alt="Dog")
				.options__item(data-name="Creamy")
					img(src="https://assets.codepen.io/567707/dog-creamy.jpg" alt="Dog")
				.options__item(data-name="Pepper")
					img(src="https://assets.codepen.io/567707/dog-pepper.jpg" alt="Dog")
!

CSS 

              
                :root {
	--white: #ffffff;
	--black-5: #f5f5f5;
	--black-10: #e4e4e4;
	--black-20: #c9c9c9;
	--black-30: #aeaeae;
	--black-50: #939393;
	--black-60: #787878;
	--black-70: #5d5d5d;
	--black-80: #424242;
	--black-90: #272727;
	--black: #0c0c0c;
}
body {
	background: #fff;
	font-family: Berkshire Swash, cursive;
}
* {
	box-sizing: border-box;
}

img {
	filter: grayscale(100%);
}

em {
	font-style: italic;
}

h1 {
	font-family: ZCOOL XiaoWei, serif;
	text-transform: uppercase;
	text-align: center;
	font-size: clamp(2.4rem, 3vw, 4rem);
	letter-spacing: 0.3rem;
	padding: 0.5rem 0.5rem 1.2rem;
}

.container {
	background: var(--black);
	padding: .5rem;
	height: 100vh;
	width: 100%;
	min-width: 550px;
	background: var(--white);
	border: 0.2rem solid var(--black);
	display: flex;
	flex-direction: column;
	@media(max-width: 550px) {
			overflow: auto;
		height: 150vh;
		}
	.inner {
		border: 0.2rem solid var(--black);
		flex: 1;
		display: flex;
		position: relative;
		overflow: hidden;
		
	}
}

.cover {
	flex: 1;
	position: relative;
	user-select: none;
	img {
		width: 100%;
		height: 100%;
		object-fit: cover;
		pointer-events: none;
	}
	&__cat {
		border-right: 2px solid var(-black);
	}
	&__dog {
		border-left: 2px solid var(--black);
	}
}

a.circle {
	font-family: Berkshire Swash, cursive;
	position: absolute;
	width: 9rem;
	height: 9rem;
	top: 50%;
	left: 50%;
	z-index: 4;
	transform: translate(-50%, -50%);
	border-radius: 50%;
	background: var(--black);
	font-size: 3rem;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--white);
	cursor: pointer;
	&:hover {
		background: var(--black-80);
	}
	&:focus,
	&:active {
		background: var(--black-60);
	}
}

.options {
	width: 100%;
	position: absolute;
	top: -100%;
	
	left: 0;
	height: 100%;
	background: #fff;
	z-index: 8;
	display: grid;
	grid: repeat(2, 50%) / repeat(2, 1fr);
	transition: .4s ease-in-out;
	&.active {
		top: 0;
	}
	@media (max-width: 700px) {
		grid: repeat(4, 25%) / 100%;
	}
	&__item {
		padding: 0.4rem;
		line-height: 0;
		margin: 1rem auto;
		display: flex;
		align-items: center;
		justify-content: center;
		cursor: pointer;
		@media (max-width: 700px) {
			margin: 0;
		}
		img {
			width: 75%;
			height: 100%;
			object-fit: cover;
			border: 6px solid var(--white);
			outline: 2px solid var(--black);
			transform: .4s ease;
			&:hover {
				border-color: var(--white);
			}
			@media (max-width: 700px) {
				width: 100%;
				height: 100%;
			}
		}
		@media (min-width: 700px) {
			&:nth-child(1) {
				transform: rotate(5deg) translate(0.8rem, 0.5rem);
			}
			&:nth-child(2) {
				transform: rotate(-2deg) translate(-0.8rem, 0.6rem);
			}
			&:nth-child(3) {
				transform: translate(0.8rem, -0.6rem);
			}
			&:nth-child(4) {
				transform: rotate(-6deg) translate(-0.8rem, -0.6rem);
			}
		}
	}
}

.postcard {
	width: 100%;
	height: 100%;
	background-image: url("https://assets.codepen.io/567707/paper_fibers.png");
	position: absolute;
	z-index: 100;
	left: -100%;
	transition: .5s ease-in-out;
	opacity: 0;
	&.active {
		left: 0;
		opacity: 1;
	}
	.chosen-card {
		border: 1px solid var(--black);
		width: 100%;
		
	}
	
	.name {
		font-family: ZCOOL XiaoWei, serif;
		text-transform: uppercase;
		text-align: center;
		font-size: clamp(1.8rem, 2.5vw, 3rem);
		letter-spacing: 0.3rem;
		padding: 0.8rem 0.8rem 1rem;
		background: var(--white);
		position: absolute;
		bottom: 0;
		width: 100%;
		text-align: center;
		left: 0;
	}
	&__chosen {
		border: 2px solid var(--black);
		padding: .8rem;
		display: inline-block;
		background: var(--white);
		position: absolute;
		left: 50%;
		top: 50%;
		transform: translate(-130%, -50%) rotate(-5deg);
		width: 40%;
		max-width: 19rem;
		min-width: 17rem;
		transition: .3s ease;
		@media(max-width: 800px) {
			transform: translate(-100%, -50%) rotate(-5deg)
		}
		@media(max-width: 550px) {
			transform: translate(-100%, -100%) rotate(-5deg)
		}
		
	}
	&__back {
		border: 2px solid var(--black);
		padding: 2rem;
		position: absolute;
		background: var(--white);
		left: 40%;
		top: 40%;
		transform: translate(-10%, -40%) rotate(2deg);
		display: flex;
		transition: .3s ease;
		@media(max-width: 800px) {
			transform: translate(-30%, -50%) rotate(2deg);
		}
		> * {
			flex: 1;
		}
		textarea {
			resize: none;
			margin-right: 2rem;
			border: none;
			font-size: 120%;
			&:focus {
				outline: none;
				background: var(--black-5);
			}
		}
	}
	.stamp {
		position: absolute;
		width: 15%;
		max-width: 5rem;
		right: 1rem;
		top: 1rem;
	}
	.address {
		border-left: 1px solid var(--black);
		padding: 4.5rem 0 0 2rem;
		
	}
	.close-this {
		position: absolute;
		right: 1rem;
		top: 1rem;
		width: 2rem;
		height: 2rem;
		cursor: pointer;
	}
}

input {
	width: 100%;
	font-family: Berkshire Swash, cursive;
	margin: .5rem 0;
	border: 1px solid;
	border-width: 0 0 1px;
	font-size: 1.2rem;
	padding: .5rem .8rem;
	@media(max-width: 800px) {
		padding: .3rem .5rem;
		font-size: 1rem;
	}
	&:focus {
		outline: none;
		background: var(--black-5);
		
	}
}

button {
	width: 100%;
	background: var(--black-90);
	cursor: pointer;
	font-family: ZCOOL XiaoWei, serif;
	text-transform: uppercase;
	text-align: center;
	font-size: 1.4rem;
	padding: .8rem;
	margin-top: 1rem;
	border: none;
	color: var(--white);
	@media(max-width: 800px) {
		font-size: 1rem;
		padding: .5rem;
		margin-top: .4rem;
	}
	&:hover {
		background: var(--black-90);
	}
	&:focus, &:active {
		background: var(--black-80);
		outline: none;
	}
}


.info {
	position: absolute;
	font-size: 3rem;
	width: 2rem;
	height: 2rem;
	border-radius: 50%;
	right: .8rem;
	top: .8rem;
	padding: .2rem;
	text-align: center;
	background: var(--black);
	color: white;
	cursor: pointer;
	&:hover {
		background: var(--black-90);
		.more-info {
			display: flex;
		}
	}
	.more-info {
		display: none;
		align-items: center;
		background: var(--black-60);
		color: var(--red);
		position: absolute;
		right: 0;
		width: 30rem;
		z-index: 100;
		font-size: 1rem;
		text-align: left;
		top: 105%;
		line-height: 1.3;
		a {
			color: var(--red-dark);
		}
		.image {
			flex: 0 0 30%;
			max-width: 10rem;
			line-height: 0;
			img {
				width: 100%;
			}
		}
		p {
			flex: 1;
			padding: 0 1.5rem;
		}
	}
}
!

JS 

              
                $('a.circle').on('click', function(){
	var animal = $(this).data('type');
	if (animal == 'cat') {
		$('.cat-options').addClass('active');
		$('.dog-options').removeClass('active');
	} else if (animal == 'dog') {
		$('.dog-options').addClass('active');
		$('.cat-options').removeClass('active');
	}
});

$('.options__item').on('click', function(){
	var photo = $(this).find('img').attr('src');
	$('.chosen-card').attr('src',photo);
	$('.postcard').addClass('active');
	$('.name').text($(this).data('name'));
});

$(window).on("load resize",function(e){
  var width =  $('.postcard__chosen').outerHeight();
	var height = $('.postcard__chosen').outerWidth();
	$('.postcard__back').outerHeight(height*1.1);
	$('.postcard__back').outerWidth(width*1.1);
});

$('.close-this').on('click', function(){
	$('.postcard').removeClass('active');
});
!
999px

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