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HTML 

              
                    <div class="container text-center mt-5"><button type="button" class="btn btn-success mb-5" id="generatePokemon">Get Pokemon</button></div>
    <!--     <div id="pokemonImage"></div> -->
    <div id="pokemonContainer" class="pokemon-container">
    	
    </div>
!

CSS 

              
                body {
	background-image: url("https://i.imgur.com/l7VHiQD.png");
}


.pokemon-container {
	display: flex;
	flex-wrap: wrap;
	align-items: space-between;
	justify-content: center;
	margin: 0 auto;
	max-width: 1200px;
	-webkit-perspective: 100000;
	perspective: 100000;
}

.pokemon-container .pokemon-card.flipped {
	-webkit-transform: rotatey(-180deg);
	transform: rotatey(-180deg);
}

.pokemon-container .pokemon-card {
	width: 100%;
	height: 100%;
	transform-style: preserve-3d;
	transition: 0.5s;
	-webkit-transform-style: preserve-3d;
	-webkit-transition: 0.35s;
}

.pokemon-container .pokemon-card .face {
	width: 100%;
	height: 210px;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
	z-index: 2;
}

.pokemon-container .pokemon-card .front {
	z-index: 1;
	cursor: pointer;
}

.pokemon-container .pokemon-card .back {
	-webkit-transform: rotatey(-180deg);
	transform: rotatey(-180deg);
	cursor: pointer;
}

.back img{
/* 	position:relative; */
/* 	top: -20px; */
	width:100%;
	height:240px;
	margin: 0;
	padding: 0;
}

.pokemon-card {
	text-align: center;
	margin-right: 15px;
	margin-bottom: 15px;
	border: 8px solid #f9ee75;
	border-radius: 15px;
	padding: 15px 15px 0 15px;
	max-width: 165px;
	-webkit-box-shadow: 0px 0px 7px 0.5px rgba(0, 0, 0, 0.8);
	-moz-box-shadow: 0px 0px 7px 0.5px rgba(0, 0, 0, 0.8);
	box-shadow: 0px 0px 7px 0.5px rgba(0, 0, 0, 0.8);
}

.imageContainer {
	border-radius: 50%;
	background-color: beige;
}

.pokemon-name {
	font-size: 0.8em;
	font-weight: bold;
	text-align: left;
}

.pokemon-hp {
	font-size: 0.7em;
	font-weight: bold;
	text-align: right;
	color: #c23b1f;
	/* 	margin-top: auto; */
}

.pokemon-type {
	font-size: 0.6em;
	font-weight: bold;
	text-align: left;
	margin-top: 20px;
	margin-bottom: 0;
}

.pokemon-id {
	font-size: 0.6em;
	font-weight: bold;
	text-align: right;
	color: darkgreen;
	margin-top: 20px;
	margin-bottom: 0;
}

.pokemon-type-id {
	margin-bottom: 0;
}

/* .row, .col-4, .col-6, .col-8 {
	border: solid black 2px;
} */
!

JS 

              
                //stop codepen from exiting loop
window.CP.PenTimer.MAX_TIME_IN_LOOP_WO_EXIT = 6000;

const pokemonInfoUrl = `https://pokeapi.co/api/v2/pokemon/`;
const pokemonImageUrl = `https://pokeres.bastionbot.org/images/pokemon/`;
const pokemonSpeciesUrl = `https://pokeapi.co/api/v2/pokemon-species/`;

const generatePokemonBtn = document.getElementById("generatePokemon");
let pokemonContainer = document.getElementById("pokemonContainer");
const pokemonImage = document.getElementById("pokemonImage");
const numOfPokemon = 151; //807 total
const elementColors = {
	grass: ["#ffffff", "#b6dfa5", "#7cd57a"],
	fire: ["#ffffff", "#e29a67", "#d53636"],
	water: ["#ffffff", "#a5c7df", "#7aacd5"],
	bug: ["#ffffff", "#d1dfa5", "#c2d57a"],
	normal: ["#ffffff", "#dfcda5", "#d5bd7a"],
	poison: ["#ffffff", "#b4a5df", "#807ad5"],
	electric: ["#ffffff", "#f6fb9f", "#fbff56"],
	ground: ["#ffffff", "#bbad8c", "#b9976b"],
	fairy: ["#ffffff", "#daa5df", "#d07ad5"],
	fighting: ["#ffffff", "#e2d067", "#d56f36"],
	psychic: ["#ffffff", "#a567e2", "#8036d5"],
	rock: ["#ffffff", "#ebb04f", "#a36d2c"],
	ghost: ["#ffffff", "#ba95df", "#9965d2"],
	ice: ["#ffffff", "#d8f3fa", "#7cd7f9"],
	dragon: ["#ffffff", "#f9fa49", "#f4c925"],
	dark: ["#ffffff", "#6c6c6c", "#000000"],
	steel: ["#ffffff", "#e6e5e5", "#8c8b8b"],
	flying: ["#ffffff", "#f9f9f9", "#dedede"]
};

generatePokemonBtn.addEventListener("click", async () => {
	for (let i = 1; i <= numOfPokemon; ++i) await fetchPokemon(i);
});

const fetchPokemon = async id => {
	const res = await fetch(pokemonInfoUrl + id);
	const pokemon = await res.json();
	
	const res2 = await fetch(pokemonSpeciesUrl + id);
	const pokemonSpecies = await res2.json();
	makePokemonCard(pokemon, pokemonSpecies, id);
};

const makePokemonCard = (pokemon, species, id) => {
	const pokemonCard = document.createElement("div");
	pokemonCard.classList.add("pokemon-card");
	
	pokemonCard.addEventListener("click", function () {
		pokemonCard.classList.toggle("flipped");
		
		let frontCard = pokemonCard.getElementsByClassName("front");
		let backCard = pokemonCard.getElementsByClassName("back");
		(frontCard[0].style.display === "block") ? frontCard[0].style.display = "none" : frontCard[0].style.display = "block";
		(backCard[0].style.display === "block") ? backCard[0].style.display = "none" : backCard[0].style.display = "block";
		
	});
	
	pokemonCard.setAttribute("id", `cardNum${id}`);
	const pokemonType = pokemon.types[0].type.name;
	const flavorText = species
		.flavor_text_entries[1]
		.flavor_text.replace(/[^0-9éa-zA-Z_.,']/gi, ' ')
		.replace('POKéMON', 'Pokémon');

	const frontFaceInnerHTML = `
	<div class="face front" style="display:block">
    	<div class="row pokemon-name-hp">
			<div class="col-6 pokemon-name"><p>${
				pokemon.name[0].toUpperCase() + pokemon.name.slice(1)
			}</p></div>
			<div class="col-6 pokemon-hp"><p>${pokemon.stats[0].base_stat} HP</p></div>
		</div>
      	<div class="imageContainer">
    		<div>
				<img src="${pokemonImageUrl}${id}.png" style="width:120px"/>
			</div>
     	</div>
		<div class="row pokemon-type-id mb-0 pb-0">
			<div class="col-8 pl-3 pokemon-type">
				<p>Type: ${pokemonType[0].toUpperCase() + pokemonType.slice(1)}</p>
			</div>
			<div class="col-4 pr-3 pokemon-id">
     			<p>#${pokemon.id}</p>
			</div>
		</div>
	</div>
	<div class="face back row mx-auto" style="display:none">
		<div class="col-12 p-0">
			<h6>${flavorText}</h6>
		</div>
	</div>
    `;
	
	pokemonCard.innerHTML = frontFaceInnerHTML;
	changeCardColor(pokemonCard, pokemonType);
	pokemonContainer.appendChild(pokemonCard);
	
};

const changeCardColor = (card, type) => {
	switch (type) {
		case "grass":
			card.style.background = `radial-gradient(circle, ${elementColors.grass[0]} 0%, ${elementColors.grass[1]} 50%, ${elementColors.grass[2]} 100%)`;
			break;
		case "fire":
			card.style.background = `radial-gradient(circle, ${elementColors.fire[0]} 0%, ${elementColors.fire[1]} 50%, ${elementColors.fire[2]} 100%)`;
			break;
		case "water":
			card.style.background = `radial-gradient(circle, ${elementColors.water[0]} 0%, ${elementColors.water[1]} 50%, ${elementColors.water[2]} 100%)`;
			break;
		case "bug":
			card.style.background = `radial-gradient(circle, ${elementColors.bug[0]} 0%, ${elementColors.bug[1]} 50%, ${elementColors.bug[2]} 100%)`;
			break;
		case "normal":
			card.style.background = `radial-gradient(circle, ${elementColors.normal[0]} 0%, ${elementColors.normal[1]} 50%, ${elementColors.normal[2]} 100%)`;
			break;
		case "poison":
			card.style.background = `radial-gradient(circle, ${elementColors.poison[0]} 0%, ${elementColors.poison[1]} 50%, ${elementColors.poison[2]} 100%)`;
			break;
		case "electric":
			card.style.background = `radial-gradient(circle, ${elementColors.electric[0]} 0%, ${elementColors.electric[1]} 50%, ${elementColors.electric[2]} 100%)`;
			break;
		case "ground":
			card.style.background = `radial-gradient(circle, ${elementColors.ground[0]} 0%, ${elementColors.ground[1]} 50%, ${elementColors.ground[2]} 100%)`;
			break;
		case "fairy":
			card.style.background = `radial-gradient(circle, ${elementColors.fairy[0]} 0%, ${elementColors.fairy[1]} 50%, ${elementColors.fairy[2]} 100%)`;
			break;
		case "fighting":
			card.style.background = `radial-gradient(circle, ${elementColors.fighting[0]} 0%, ${elementColors.fighting[1]} 50%, ${elementColors.fighting[2]} 100%)`;
			break;
		case "psychic":
			card.style.background = `radial-gradient(circle, ${elementColors.psychic[0]} 0%, ${elementColors.psychic[1]} 50%, ${elementColors.psychic[2]} 100%)`;
			break;
		case "rock":
			card.style.background = `radial-gradient(circle, ${elementColors.rock[0]} 0%, ${elementColors.rock[1]} 50%, ${elementColors.rock[2]} 100%)`;
			break;
		case "ghost":
			card.style.background = `radial-gradient(circle, ${elementColors.ghost[0]} 0%, ${elementColors.ghost[1]} 50%, ${elementColors.ghost[2]} 100%)`;
			break;
		case "ice":
			card.style.background = `radial-gradient(circle, ${elementColors.ice[0]} 0%, ${elementColors.ice[1]} 50%, ${elementColors.ice[2]} 100%)`;
			break;
		case "dragon":
			card.style.background = `radial-gradient(circle, ${elementColors.dragon[0]} 0%, ${elementColors.dragon[1]} 50%, ${elementColors.dragon[2]} 100%)`;
			break;
		case "dark":
			card.style.background = `radial-gradient(circle, ${elementColors.dark[0]} 0%, ${elementColors.dark[1]} 50%, ${elementColors.dark[2]} 100%)`;
			break;
		case "steel":
			card.style.background = `radial-gradient(circle, ${elementColors.steel[0]} 0%, ${elementColors.steel[1]} 50%, ${elementColors.steel[2]} 100%)`;
			break;
		case "flying":
			card.style.background = `radial-gradient(circle, ${elementColors.flying[0]} 0%, ${elementColors.flying[1]} 50%, ${elementColors.flying[2]} 100%)`;
			break;
	}
};
!
999px

Console