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Create a Memory Game using HTML, CSS & JavaScript

Create a Memory Game using HTML, CSS & JavaScript

Hello everyone. Welcome to today’s tutorial on Codewithrandom. We’ll learn how to make a memory game in which it will be testing the user memory that where are the same objects and find its pair.

In Today’s session, We will use HTML, CSS, and JavaScript to complete this Project.

The HTML (Hypertext Markup Language) code will help us to prepare a game board and the necessary elements to create the structure.

The CSS (Cascading Stylesheet) code will help to style the project with suitable bgcolor and some alignment to the necessary elements.

Then the JS(JavaScript) code will contain the images of the game and then we’ll make it a grid and some functions to make it responsive at the user end.

I hope you have got an idea about the project.

HTML Code for Memory Game

<html lang="en">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Javascript Memory Game</title>
    <link rel="stylesheet" href="style.css">
  <h1>GAME BOARD</h1>
    <div id="game-board"></div>

    <script src="main.js"></script>

In this code we have created the structure using game board and a header for it. And we have linked some style template and the JS code to make it responsive later on. Let us code the CSS part to add some styling and aligned the structure.

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CSS Code for Memory Game

*::after {
  box-sizing: border-box;

body {
  margin: 20px 0;
  background: #1E1E25;

h1 {
  font-family: sans-serif;
  text-align: center;
  padding: 20px;
  color: white;
  font-family: 'Roboto Mono', monospace;

.grid {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;

.card {
  position: relative;
  transition: all .4s linear;
  transform-style: preserve-3d;
  margin: 5px; 

.front {
  height: 150px;
  width: 150px;

.front {
  position: absolute;
  backface-visibility: hidden;

.front {
  z-index: 2;
  background: #FAB942 url('../img/question.gif') no-repeat center center / contain;

.back {
  transform: rotateY(180deg);
  background-color: #D49D42;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center center;

.selected {
  transform: rotateY(180deg);

.match .front {
  background: #6589F9 !important;

This CSS code is very vast because the structure only contains the gameboard but the remaining part is defined in the JS code and we have aligned that using the ids and class. We have padded and set a margin for each picture so that it looks good and doesn’t get messy. Let us code the JavaScript part to make it user responsive.

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JavaScript Code for Memory Game

var cardsArray = [
    {    'name': 'CSS',    'img': '',  },
    {    'name': 'HTML',    'img': '',  },
    {    'name': 'jQuery',    'img': '',  },
    {    'name': 'JS',    'img': '',  },
    {    'name': 'Node',    'img': '',  },
    {    'name': 'Photo Shop',    'img': '',  },
    {    'name': 'PHP',    'img': '',  },
    {    'name': 'Python',    'img': '',  },
    {    'name': 'Ruby',    'img': '',  },
    {    'name': 'Sass',    'img': '',  },
    {    'name': 'Sublime',    'img': '',  },
    {    'name': 'Wordpress',    'img': '',  },

//Duplicate cardsArray to create a match for each card
var gameGrid = cardsArray.concat(cardsArray);

//Randomize game grid on each load
gameGrid.sort(function() {
    return 0.5 - Math.random();

//grab the div with an id of game-board and assign to a variable game
var game = document.getElementById("game-board");

//Create a section element and assign it to variable grid
var grid = document.createElement('section');

//Give section element a class of grid.
grid.setAttribute('class', 'grid');

//Append the grid section to the game-board div

//Loop through each item in our cards array
for(var i =0; i < gameGrid.length ; i++) {

    //create a div element and assign to variable card
    var card = document.createElement('div');
    //Apply a card class to that div
    //Set the data-name attribute of the div to the cardsArray name
    // = cardsArray[i].name;
    //Create front of card
    var front = document.createElement('div');

    //Create back of card´
    var back = document.createElement('div');
    back.classList.add('back'); = `url(${gameGrid[i].img})`;

    //Append card to grid

var firstGuess='';
var secondGuess = '';

//Set count to 0
var count = 0;
var previousTarget = null;

var delay = 1200; 

//Add match CSS
var match = function() {
    var selected = document.querySelectorAll('.selected');
    //loop through the array like object containing 'selected' class
    for (i=0; i<selected.length; i++) {

// Reset guesses after two attempts
var resetGuesses = function() {
    firstGuess = '';
    secondGuess = '';
    count = 0;
    previousTarget = null;

    var selected = document.querySelectorAll('.selected');
    for ( i = 0; i < selected.length; i++) {


//Add event listener to grid
grid.addEventListener('click', function(event) {
    //Declare variable to target our clicked item
    var clicked =;
    //Do not allow the grid section itself to be selected;
    //only select divs inside the grid
    if(clicked.nodeName === 'SECTION' || clicked === previousTarget || clicked.parentNode.classList.contains ('match') || clicked.parentNode.classList.contains('selected')) {

    //We only want to add 'selected' class if the current count is less than 2
    if (count < 2) {
    if (count === 1) {
        //Assign firts guess
        firstGuess =;
    } else {
        //Assign second guess
        secondGuess =;
    //If both guesses are not empty 
    if (firstGuess !== '' && secondGuess !== '') {
        //An the firtsGuess macthes secondGuess
        if (firstGuess === secondGuess) {
            //Run the macth function
        } else {
    previousTarget = clicked;


In this JavaScript we have added the image which will the essential part of the game. Then we have added a logic to make it rotate 180 degree and defined some functions to make responsive and make it click on the image. Logic is also added to make 1 click at a time to see the image. Let us see the final output of the project Create a Memory Game using HTML, CSS & JavaScript.

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Final Output Of Memory Game Using HTML,CSS & JavaScript

We have Successfully created our Create a Memory Game using HTML, CSS & JavaScript. You can use this project for your personal needs and the respective lines of code are given with the code pen link mentioned above.

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Written By – Harsh Sawant

Code By – @harshh9

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