I am trying to make the navbar sticky but my JQuery is not adding the css class that i want to add on scroll function

Below are the HTML, CSS, and JS code in which I am facing the problem, and not able to attain the functionality that I am supposed to.

//This is where I think the prblem is but I am not able to figure out how to correct it

window(function() {
  $(window).scroll(function() {
    if (this.scrollY > 20) {
    } else {

@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Ubuntu:wght@400;500;700&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;

.max-width {
  max-width: 1300px;
  padding: 0 80px;
  margin: auto;

/* Navbar styling */

.navbar {
  position: fixed;
  width: 100%;
  font-family: "Ubuntu", "sans-serif";
  padding: 80px 0;

.navbar .max-width {
  display: flex;
  align-items: center;
  justify-content: space-between;

.navbar.sticky {
  padding: 80px 0;
  *background: #ffffff;

.navbar .max-width .logo a {
  color: crimson;

.navbar .max-width .logo a span {
  color: #000;

.navbar .logo a {
  font-size: 35px;
  font-weight: 600;

.navbar .menu li {
  list-style: none;
  display: inline-block;

.navbar .menu li a {
  color: crimson;
  font-size: 18px;
  font-weight: 500;
  margin-right: 25px;
  transition: color 0.3s ease;

.navbar .menu li a:hover {
  color: #000;

/* Home Section */

.home {
  margin-top: -60px;
  display: flex;
  background: url("images/banner.png") no-repeat center;
  height: 100vh;
  min-height: 500px;
  font-family: "Ubuntu", sans-serif;

.home .max-width {
  margin: auto 0px auto 370px;

.home .home-content .text-1 {
  font-size: 27px;

.home .home-content .text-2 {
  font-size: 75px;
  font-weight: 600;
  margin-left: -3px;

.home .home-content .text-3 {
  font-size: 40px;
  margin: 5px 0;

.home .home-content .text-3 span {
  color: crimson;
  font-weight: 500;
<!DOCTYPE html>
<html lang="en">

  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Personal Portfolio Website</title>
  <link rel="stylesheet" href="style.css">
  <script src="https://kit.fontawesome.com/a076d05399.js"></script>
  <script src="src=" https://code.jquery.com/jquery-3.5.1.min.js ""></script>

  <nav class="navbar">
    <div class="max-width">
      <div class="logo"><a href="#">Aksh<span>at Saxena</span></a></div>
      <ul class="menu">
        <li><a href="#">Home</a></li>
        <li><a href="#">About</a></li>
        <li><a href="#">Services</a></li>
        <li><a href="#">Skills</a></li>
        <li><a href="#">Teams</a></li>
        <li><a href="#">Contacts</a></li>

  <!-- home section start -->
  <section class="home" id="home">
    <div class="max-width">
      <div class="home-content">
        <div class="text-1">Hello, my name is</div>
        <div class="text-2">Akshat Saxena</div>
        <div class="text-3">And i'm a Web <span>Web Developer</span></div>

  <p>Hi, I am Akshat. I have over four years of experience in WordPress website development. If you are looking for a complete high-end, up-to-date, professional, and responsive WordPress website then you are in the right place. I will develop stunning and
    captivating websites for both businesses and individuals. I would love to help you with your desire website project. Feel free to contact me, Cheers!
  <script src="script.js"></script>


While scrolling down the background of the nav-bar should turn white but it’s not behaving in that way it should be behaving. What would be the easier way to attain this functionality if I am not supposed to do it this way.

146 thoughts on “I am trying to make the navbar sticky but my JQuery is not adding the css class that i want to add on scroll function”

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