What is carouselSlide.style.transform = 'translateX(' + (-size * counter) + 'px)'; doing in this code also what exactly is the value of px?


<!DOCTYPE html>

<html lang="en">


    <meta charset="UTF-8">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <link rel="stylesheet" href="style.css">




    <div class="carousel-container">

        <div class="carousel-slide">

            <img src="./w5.jpg" id="lastClone">

            <img src="./w1.jpg">

            <img src="./w2.png">

            <img src="./w3.jpg">

            <img src="./w4.jpg">

            <img src="./w5.jpg">

            <img src="./w1.jpg" id="firstClone">



    <button id="prevBtn">Prev</button>

    <button id="nextBtn">Next</button>

<script type="text/javascript"></script>

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



// CSS


    padding: 0px;

    margin: 0px;

    box-sizing: border-box;



    width: 60%;

    margin-left: 0px;

    border: 2px solid black;



    display: flex;

    width: 100%;

    height: 500px;



    color: black;



    color: black;


// Javascript

const carouselSlide = document.querySelector('.carousel-slide');

const carouselImages = document.querySelectorAll('.carousel-slide img')

const prevBtn = document.querySelector('#prevBtn');

const nextBtn = document.querySelector('#nextBtn');

let counter = 1;

const size = carouselImages[0].clientWidth;

carouselSlide.style.transform = 'translateX(' + (-size * counter) + 'px)';

nextBtn.addEventListener('click', function(){

    if(counter <= 0){return }

    carouselSlide.style.transition = "transform 0.4s ease-in-out";



    carouselSlide.style.transform = 'translateX(' + (-size * counter) + 'px)';


prevBtn.addEventListener('click', function(){

    carouselSlide.style.transition = "transform 0.4s ease-in-out";



    carouselSlide.style.transform = 'translateX(' + (-size * counter) + 'px)';


I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

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Please, also, edit your title to something more descriptive and concise, and add your question to the main body of the post.