Develop Reference

Responsive Navigation Hamburger Menu not working

I'm trying to make my navigation responsive but when i tried to resize my window, my hamburger doesn't allow the dropdown function to work. I took both the navigation and responsive hamburger online so is there somewhere that might be overwriting the hamburger ?
This is my HTML
<header>
<div class="logo">
<p>LEGEND</p>
<div class= "hamburger">
<div class="line"></div>
<div class="line"></div>
<div class="line"></div>
</div>
</div>
<nav class="nav-bar">
<ul>
<li>HOME</li>
<li>STORE</li>
<li>MY ACCOUNT</li>
<li>SEARCH</li>
</ul>
</nav>
<button>
<a href="#">
<h4 style="color: #f5f5f5">PLAY DIVINE</h4>
</a>
</button>
</header>
This is my css
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: #12171c;
}
header {
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 10%;
background: rgba(0, 0, 0, 0.2);
position: fixed;
height: 10%;
}
.logo {
font-size: 30px;
font-weight: bold;
color: white;
letter-spacing: 1.5px;
cursor: pointer;
}
.nav-bar li {
display: inline-block;
list-style: none;
padding: 0px 15px;
}
a, button {
font-size: 16px;
font-weight: 500;
color: #b7b9bb;
text-decoration: none;
cursor: pointer;
}
button {
background: #967526;
border: 2px solid #ffce1f;
padding: 9px 25px;
}
.header-pic {
width: 100%;
height: 100%;
background-size: cover;
}
.hamburger {
display: none;
}
This is my css when it's responsive
#media only screen and (max-width: 1320px) {
.hamburger {
display: block;
cursor: pointer;
}
.hamburger .line {
width: 30px;
height: 3px;
background: #fefefe;
margin: 6px 0;
}
.nav-bar {
height: 0;
position: absolute;
top: 80px;
left: 0;
right: 0;
width: 100vw;
background: #11101b;
transition: 0.2s;
overflow: hidden;
}
.nav-bar.active {
height: 450px;
}
.nav-bar ul {
display: block;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
.nav-bar.active ul {
opacity: 1;
}
.nav-bar ul li a {
margin-botton: 12px;
}
}
This is my javascript
<script>
hamburger = document.querySelector(".hamburger");
hamburger.onClick = function() {
navBar = document.querySelector(".nav-bar");
navbar.classList.toggle("active");
}
</script>

UPDATE
I revised the solution so that the 2 blocks are for:
In small screen but active is not on
In small screen and active is on
This separation protects the style from broken when transition happen as active toggles.
More styles can be added to the first block to define how this list should look like, such as making it display the list in column.
Example:
.nav-bar ul {
display: flex;
flex-direction: column;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
.nav-bar.active ul {
opacity: 1;
}
Original
This is because your JS code has some syntax error. Here is what to do:
Use const to declare hamburger and navbar.
Call addEventListener on hamburger to add the function for toggling class of navbar
Follow the below example to revise your code, or visit a live demo of it fixed here: codepen
const hamburger = document.querySelector(".hamburger");
const navbar = document.querySelector(".nav-bar");
hamburger.addEventListener("click", () => navbar.classList.toggle("active"));
Hope this solution will help.

Your code has nothing wrong, just few typos in your JavaScript:
You have onClick instead of onclick
navbar instead of navBar at navbar.classList.toggle("active")
Corrected version
<script>
hamburger = document.querySelector(".hamburger");
hamburger.onclick = function() {
navBar = document.querySelector(".nav-bar");
navBar.classList.toggle("active");
}
</script>
Extra (Change display: block; to display: grid; in .nav-bar ul selector in CSS media query to display dropdown in vertical list)
.nav-bar ul {
display: grid;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
hamburger = document.querySelector(".hamburger");
hamburger.onclick = function() {
navBar = document.querySelector(".nav-bar");
navBar.classList.toggle("active");
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: #12171c;
}
header {
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 10%;
background: rgba(0, 0, 0, 0.2);
position: fixed;
height: 10%;
}
.logo {
font-size: 30px;
font-weight: bold;
color: white;
letter-spacing: 1.5px;
cursor: pointer;
}
.nav-bar li {
display: inline-block;
list-style: none;
padding: 0px 15px;
}
a,
button {
font-size: 16px;
font-weight: 500;
color: #b7b9bb;
text-decoration: none;
cursor: pointer;
}
button {
background: #967526;
border: 2px solid #ffce1f;
padding: 9px 25px;
}
.header-pic {
width: 100%;
height: 100%;
background-size: cover;
}
.hamburger {
display: none;
}
#media only screen and (max-width: 1320px) {
.hamburger {
display: block;
cursor: pointer;
}
.hamburger .line {
width: 30px;
height: 3px;
background: #fefefe;
margin: 6px 0;
}
.nav-bar {
height: 0;
position: absolute;
top: 80px;
left: 0;
right: 0;
width: 100vw;
background: #11101b;
transition: 0.2s;
overflow: hidden;
}
.nav-bar.active {
height: 450px;
}
.nav-bar ul {
display: grid;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
.nav-bar.active ul {
opacity: 1;
}
.nav-bar ul li a {
margin-bottom: 12px;
}
}
<header>
<div class="logo">
<p>LEGEND</p>
<div class="hamburger">
<div class="line"></div>
<div class="line"></div>
<div class="line"></div>
</div>
</div>
<nav class="nav-bar">
<ul>
<li>HOME</li>
<li>STORE</li>
<li>MY ACCOUNT</li>
<li>SEARCH</li>
</ul>
</nav>
<button>
<a href="#">
<h4 style="color: #f5f5f5">PLAY DIVINE</h4>
</a>
</button>
</header>
Better Solution
Quote from MDN Web Docs, as in this link:
The recommended mechanism for adding event handlers in web pages is the addEventListener() method
You may use addEventListener() to achieve the same result:
<script>
hamburger = document.querySelector(".hamburger");
hamburger.addEventListener("click", () => {
navBar = document.querySelector(".nav-bar");
navBar.classList.toggle("active");
});
</script>
hamburger = document.querySelector(".hamburger");
hamburger.addEventListener("click", () => {
navBar = document.querySelector(".nav-bar");
navBar.classList.toggle("active");
});
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: #12171c;
}
header {
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 10%;
background: rgba(0, 0, 0, 0.2);
position: fixed;
height: 10%;
}
.logo {
font-size: 30px;
font-weight: bold;
color: white;
letter-spacing: 1.5px;
cursor: pointer;
}
.nav-bar li {
display: inline-block;
list-style: none;
padding: 0px 15px;
}
a,
button {
font-size: 16px;
font-weight: 500;
color: #b7b9bb;
text-decoration: none;
cursor: pointer;
}
button {
background: #967526;
border: 2px solid #ffce1f;
padding: 9px 25px;
}
.header-pic {
width: 100%;
height: 100%;
background-size: cover;
}
.hamburger {
display: none;
}
#media only screen and (max-width: 1320px) {
.hamburger {
display: block;
cursor: pointer;
}
.hamburger .line {
width: 30px;
height: 3px;
background: #fefefe;
margin: 6px 0;
}
.nav-bar {
height: 0;
position: absolute;
top: 80px;
left: 0;
right: 0;
width: 100vw;
background: #11101b;
transition: 0.2s;
overflow: hidden;
}
.nav-bar.active {
height: 450px;
}
.nav-bar ul {
display: grid;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
.nav-bar.active ul {
opacity: 1;
}
.nav-bar ul li a {
margin-bottom: 12px;
}
}
<header>
<div class="logo">
<p>LEGEND</p>
<div class="hamburger">
<div class="line"></div>
<div class="line"></div>
<div class="line"></div>
</div>
</div>
<nav class="nav-bar">
<ul>
<li>HOME</li>
<li>STORE</li>
<li>MY ACCOUNT</li>
<li>SEARCH</li>
</ul>
</nav>
<button>
<a href="#">
<h4 style="color: #f5f5f5">PLAY DIVINE</h4>
</a>
</button>
</header>
Alternate Solution
For readers who are more familiar to add() / remove(), here's some alternatives:
<script>
hamburger = document.querySelector(".hamburger");
hamburger.addEventListener("click", () => {
navBar = document.querySelector(".nav-bar");
if (navBar.classList.contains("active")) {
navBar.classList.remove("active");
} else {
navBar.classList.add("active");
}
});
</script>
hamburger = document.querySelector(".hamburger");
hamburger.addEventListener("click", () => {
navBar = document.querySelector(".nav-bar");
if (navBar.classList.contains("active")) {
navBar.classList.remove("active");
} else {
navBar.classList.add("active");
}
});
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: #12171c;
}
header {
width: 100%;
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px 10%;
background: rgba(0, 0, 0, 0.2);
position: fixed;
height: 10%;
}
.logo {
font-size: 30px;
font-weight: bold;
color: white;
letter-spacing: 1.5px;
cursor: pointer;
}
.nav-bar li {
display: inline-block;
list-style: none;
padding: 0px 15px;
}
a,
button {
font-size: 16px;
font-weight: 500;
color: #b7b9bb;
text-decoration: none;
cursor: pointer;
}
button {
background: #967526;
border: 2px solid #ffce1f;
padding: 9px 25px;
}
.header-pic {
width: 100%;
height: 100%;
background-size: cover;
}
.hamburger {
display: none;
}
#media only screen and (max-width: 1320px) {
.hamburger {
display: block;
cursor: pointer;
}
.hamburger .line {
width: 30px;
height: 3px;
background: #fefefe;
margin: 6px 0;
}
.nav-bar {
height: 0;
position: absolute;
top: 80px;
left: 0;
right: 0;
width: 100vw;
background: #11101b;
transition: 0.2s;
overflow: hidden;
}
.nav-bar.active {
height: 450px;
}
.nav-bar ul {
display: grid;
width: fit-content;
margin: 80px auto 0 auto;
text-align: center;
transition: 0.5s;
opacity: 0;
}
.nav-bar.active ul {
opacity: 1;
}
.nav-bar ul li a {
margin-bottom: 12px;
}
}
<header>
<div class="logo">
<p>LEGEND</p>
<div class="hamburger">
<div class="line"></div>
<div class="line"></div>
<div class="line"></div>
</div>
</div>
<nav class="nav-bar">
<ul>
<li>HOME</li>
<li>STORE</li>
<li>MY ACCOUNT</li>
<li>SEARCH</li>
</ul>
</nav>
<button>
<a href="#">
<h4 style="color: #f5f5f5">PLAY DIVINE</h4>
</a>
</button>
</header>

Hamburger Navmenu problems

I am creating a website and there seems to be a problem with the hamburger menu.
I have a basic hamburger navbar but I have to hold the hamburger icon to activate the hamburger menu. Still, the nav menu doesn't appear after clicking/holding the hamburger icon!
const hamburger = document.getElementsByClassName('hamburger-menu')[0];
const navLinks = document.getElementsByClassName('navlinks')[0];
hamburger.addEventListener('click', () => {
hamburger.classlist.toggle("open");
navLinks.classlist.toggle("open");
});
#import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans&display=swap");
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: "Plus Jakarta Sans", sans-serif;
}
body {
background-color: #f2e5d7;
}
a {
text-decoration: none;
}
.navbar {
padding: 1rem;
display: flex;
justify-content: space-between;
align-items: center;
background-color: #3a3e59;
box-shadow: 1px 1px 7px 4px grey;
}
.logo {
width: 50%;
display: flex;
align-items: center;
}
.logo img {
border-radius: 50%;
width: 4rem;
}
.nkc {
margin-left: 20px;
font-weight: 600;
letter-spacing: 1.5px;
font-size: 17px;
}
.hamburger-menu {
display: none;
transition: 0.3s ease-in-out;
cursor: pointer;
}
.bar {
width: 25px;
height: 3px;
background-color: #f75435;
margin: 2.5px;
}
.navlinks {
list-style: none;
display: flex;
flex-direction: column;
gap: 20px;
top: 95px;
position: fixed;
right: -100%;
background-color: #3a3e59;
padding: 1rem 3.5rem;
height: 20%;
transition: all 0.3s ease-in-out;
}
.navlinks li a {
color: #f75435;
font-size: 17px;
}
.hamburger-menu.open .bar:nth-child(1) {
transform: rotate(-45deg) translate(-5px, 6px);
}
.hamburger-menu.open .bar:nth-child(2) {
opacity: 0;
}
.hamburger-menu.open .bar:nth-child(3) {
transform: rotate(45deg) translate(-5px, -6px);
}
.navlinks.open {
right: 1rem;
}
#media screen and (max-width: 768px) {
.hamburger-menu {
display: flex;
flex-direction: column;
}
}
<body>
<header class="header">
<nav class="navbar">
<div class="logo">
<img src="assets/logo.jpg" alt="Nikhil Codes">
<h5 class="nkc">Nikhil Codes</h5>
</div>
<ul class="navlinks">
<li class="nav-link">Home</li>
<li class="nav-link">About</li>
<li class="nav-link">Contact</li>
</ul>
<div class="hamburger-menu">
<span class="bar"></span>
<span class="bar"></span>
<span class="bar"></span>
</div>
</nav>
</header>
<script src="scripts.js"></script>
</body>

Just a bunch of syntax errors and issues with your CSS. I've edited them and marked up the changes I've made below.
//added the code to the onload event so you can put the script wherever you like and not be restricted to putting it at the end of your html
window.onload = () => {
const hamburger = document.querySelector('.hamburger-menu'); //Changed this to querySelector so you don't need to get the 1st item
const navLinks = document.querySelector('.navlinks'); //ditto
hamburger.addEventListener('click', () => {
hamburger.classList.toggle("open"); //Was classlist, not classList (note the capital L)
navLinks.classList.toggle("open");
});
}
#import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans&display=swap");
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: "Plus Jakarta Sans", sans-serif;
}
body {
background-color: #f2e5d7;
}
a {
text-decoration: none;
}
.navbar {
padding: 1rem;
display: flex;
justify-content: space-between;
align-items: center;
background-color: #3a3e59;
box-shadow: 1px 1px 7px 4px grey;
color: white;
/* added a colour here so I could see what's going on' */
}
.logo {
width: 50%;
display: flex;
align-items: center;
}
.logo img {
border-radius: 50%;
width: 4rem;
}
.nkc {
margin-left: 20px;
font-weight: 600;
letter-spacing: 1.5px;
font-size: 17px;
}
.hamburger-menu {
/* display: none; */
display: flex;
/*changed this to display flex to stack the bars on top of each other */
flex-direction: column;
/*stack the bars using this */
transition: 0.3s ease-in-out;
cursor: pointer;
}
.bar {
display: inline-block;
/*added this to make the width & height attributes effective */
width: 25px;
height: 3px;
background-color: #f75435;
margin: 2.5px;
}
.navlinks {
list-style: none;
display: flex;
flex-direction: column;
gap: 20px;
top: 95px;
position: fixed;
right: -100%;
background-color: #3a3e59;
padding: 1rem 3.5rem;
height: fit-content;
/* changed this to fit content as the menu spills out of the bottom at small screen heights */
transition: all 0.3s ease-in-out;
}
.navlinks li a {
color: #f75435;
font-size: 17px;
}
.hamburger-menu.open .bar:nth-child(1) {
transform: rotate(-45deg) translate(-5px, 6px);
}
.hamburger-menu.open .bar:nth-child(2) {
opacity: 0;
}
.hamburger-menu.open .bar:nth-child(3) {
transform: rotate(45deg) translate(-5px, -6px);
}
.navlinks.open {
right: 1rem;
}
#media screen and (max-width: 768px) {
.hamburger-menu {
display: flex;
flex-direction: column;
}
}
<header class="header">
<nav class="navbar">
<div class="logo">
<img src="assets/logo.jpg" alt="Nikhil Codes">
<h5 class="nkc">Nikhil Codes</h5>
</div>
<ul class="navlinks">
<li class="nav-link">Home</li>
<li class="nav-link">About</li>
<li class="nav-link">Contact</li>
</ul>
<div class="hamburger-menu">
<span class="bar"></span>
<span class="bar"></span>
<span class="bar"></span>
</div>
</nav>
</header>

How can I make the footer stop overlapping with the mobile NAV bar? On the mobile view, the NAV bar goes under the footer. Any solutions?

I have been trying to resolve this for quite some time, but I am able to find the solution.
On the mobile view, the NAV bar goes under the footer. I think there is some kind of mistake in HTML or CSS code. I tried adjusting the values also added many elements on CSS but nothing worked. Please check the codes for me.
const navSlide = () => {
const burger = document.querySelector('.burger');
const nav = document.querySelector('.nav-links');
const navLinks = document.querySelectorAll('.nav-links li');
burger.addEventListener('click', () => {
//Toggle Nav
nav.classList.toggle('nav-active');
//Animate Links
navLinks.forEach((link, index) => {
if (link.style.animation) {
link.style.animation = '';
} else {
link.style.animation = `navLinkFade 0.5s ease forwards ${index / 7 + 1.5}s`;
}
});
//Burger Animation
burger.classList.toggle('toggle');
});
}
navSlide();
*{
margin: 0px;
padding: 0px;
box-sizing: border-box;
/* For footer but can be used for everything*/
text-decoration: none;
list-style: none;
}
body {
background-color: #ffffff;
}
nav {
font-family: 'Roboto', sans-serif;
align-items: center;
min-height: 9vh;
background-color: #3b9aff;
display: flex;
justify-content: space-around;
}
.nav-links li a:hover{
padding: 14px 22px;
background-color: #ffba30;
transition: 0.3s;
}
.logo{
color: white;
text-transform: uppercase;
letter-spacing: 5px;
font-size: 20px;
}
.nav-links{
display: flex;
justify-content: space-between;
width: 30%;
}
.nav-links li{
list-style: none;
}
.nav-links a{
color: white;
text-decoration: none;
letter-spacing: 3px;
font-weight: bold;
font-size: 14px;
}
.burger{
display: none;
cursor: pointer;
}
.burger div{
width: 25px;
height: 3px;
background-color: white;
margin: 5px;
transition: all 0.3s ease;
}
.navbar a:hover, .dropdown:hover .dropbtn {
background-color: red;
padding: 16px 24px;
transition: 0.3s;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #b3bae6;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
border: 2px solid red;
}
.dropdown-content a {
display: flex;
color: white;
text-decoration: none;
display: block;
padding: 12px 16px;
}
.footer{
width: 100vw;
display: block;
overflow: hidden;
padding: 70px 0;
box-sizing: border-box;
background-color: #3b9aff;
position: fixed;
bottom: 0;
}
.inner_footer{
display: block;
margin: 0 auto;
width: 1100px;
height: 100%;
}
.inner_footer .logo_container{
width: 35%;
float: left;
height: 100;
display: block;
}
.inner_footer .logo_container img{
width: 65px;
height: auto;
}
.inner_footer .footer_third{
width: calc(21.6666666667% - 20px);
margin-right: 10px;
float: left;
height: 100%;
}
.inner_footer .footer_third:last-child{
margin-right: 0;
}
.inner_footer .footer_third h1{
font-family: 'Roboto', sans-serif;
font-size: 22px;
color: white;
display: block;
width: 100%;
margin-bottom: 20px;
}
.inner_footer .footer_third a{
font-family: 'Roboto', sans-serif;
font-size: 18px;
color: white;
display: block;
font-weight: 200;
width: 100%;
padding-bottom: 5px;
}
.inner_footer .footer_third li{
display: inline-block;
padding: 0 5px;
font-size: 20px;
}
.inner_footer .footer_third span{
color: white;
font-family: 'Roboto', sans-serif;
font-size: 16px;
font-family: 200;
display: block;
width: 100%;
padding-top: 20px;
}
.dropdown:hover .dropdown-content {
display: block;
transition: 0.3s;
}
#media screen and (max-width:1024px){
.nav-links{
width: 60%;
}
}
#media screen and (max-width:760px){
body{
overflow-x: hidden;
}
.nav-links{
position: absolute;
right: 0px;
height: 92vh;
top: 8vh;
background: #3b9aff;
display: flex;
flex-direction: column;
align-items: center;
width: 50%;
transform: translateX(100%);
transition: transform 0.5s ease-in;
}
/*Mistake*/
nav-links{
opacity: 0;
}
.burger{
display: block;
}
}
.nav-active{
transform: translateX(0%);
}
#keyframes navLinkFade{
from{
opacity: 0;
transform: translateX(50px);
}
to{
opacity: 1;
transform: translateX(0px);
}
}
.toggle .line1{
transform: rotate(-45deg) translate(-5px,6px);
}
.toggle .line2{
opacity: 0;
}
.toggle .line3{
transform: rotate(45deg) translate(-5px,-6px);
}
#media(max-width:900px){
.footer .inner_footer{
width: 90%;
}
.inner_footer .logo_container,
.inner_footer .footer_third{
width: 100px;
margin-bottom: 30px;
}
}
<!DOCTYPE html>
<html>
<head>
<title>e-commerce</title>
<link href="https://fonts.googleapis.com/css2?family=Roboto&display=swap" rel="stylesheet">
<link rel="stylesheet" href="stylesheet.css">
<script src="https://kit.fontawesome.com/dadb58458c.js" crossorigin="anonymous"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<nav>
<div class="logo">
<h4>First Education</h4>
</div>
<ul class="nav-links">
<li>
Home
</li>
<li>
About
</li>
<li>
Work
</li>
<li class="dropdown">
Projects
<div class="dropdown-content">
Link 1
Link 2
Link 3
</div>
</li>
</ul>
<div class="burger">
<div class="line1"></div>
<div class="line2"></div>
<div class="line3"></div>
</div>
</nav>
<div class="footer">
<div class="inner_footer">
<div class="logo_container">
<img src="logo.jpg">
</div>
<div class="footer_third">
<h1>Need Help?</h1>
Terms &amp Conditions
Privacy Policy
</div>
<div class="footer_third">
<h1>More Intel</h1>
Redeem Voucher
Free Courses
Redeem Voucher
Free Courses
</div>
<div class="footer_third">
<h1>Follow Us</h1>
<li><i class="fa fa-facebook"></i></li>
<li><i class="fa fa-twitter"></i></li>
<li><i class="fa fa-instagram"></i></li>
<span>11 th Floor, 15 St Botolph St, London EC3A 7BB, United Kingdom</span>
</div>
</div>
</div>
<script src="script.js"></script>
</body>
</html>

Add the following property in your css classname
.nav {
position: relative;
z-index: 1000;
...previous properties
}

Your nav has a min-height of 9vh. If the footer winds up being more than 91vh, then it'll overlap.
You're footer is also position:fixed and the text is quite long, which makes it likely to exceed that height. One thing that could work is position:sticky instead of position: fixed if you want the footer to move along with the page.

div size after an eventlistener

I was working in this super simple project get really satisfied with the finish work but then CHAN! When I check the functionality of the app I noticed that the firs card, the one of the basic services get's bigger when the number change and also the third division line of the card change his size acting by himself when all the division lines are made it at once.
I was using SASS for this project but I don't think that was the problem in the compilation.
The problem is when I test the app in big screens
const switcher = document.querySelector("input");
switcher.addEventListener("click", () => {
const priceBasic = document.querySelector(".priceBasic");
const pricePro = document.querySelector(".pricePro");
const priceMaster = document.querySelector(".priceMaster");
if (switcher.checked == true) {
priceBasic.innerHTML = "$49.99";
pricePro.innerHTML = "$69.99";
priceMaster.innerHTML = "$89.99";
} else {
priceBasic.innerHTML = "$19.99";
pricePro.innerHTML = "$24.99";
priceMaster.innerHTML = "$39.99";
}
});
body, html {
height: 100%;
margin: 0;
}
body {
font-family: "Montserrat", sans-serif;
background: #f7f6ff;
display: grid;
justify-content: center;
}
.container {
max-width: 980px;
}
.switch {
position: relative;
display: block;
width: 65px;
height: 35px;
}
.slider {
position: absolute;
cursor: pointer;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: white;
transition: 0.5s;
border: 3px solid white;
}
.slider:before {
position: absolute;
content: "";
bottom: 14px;
top: 3.1px;
background: #eeeded;
transition: 0.5s;
}
.switch input {
display: none;
}
input:checked + .slider {
background: #7466f5;
}
input:checked + .slider:before {
transform: translateX(35px);
}
.slider.round {
border-radius: 35px;
}
.slider.round:before {
width: 35%;
height: 75%;
border-radius: 50px;
}
.header-and-switch {
width: 100%;
display: flex;
flex-direction: column;
justify-items: center;
align-items: center;
margin-bottom: 20%;
}
.header-and-switch h2 {
font-size: 1.75rem;
color: #524c85;
}
#media (min-width: 1100px) {
.header-and-switch h2 {
margin: 10px auto 0 auto;
}
}
#media (min-width: 1100px) {
.header-and-switch {
margin-bottom: 3%;
}
}
.switch-and-stuff {
display: flex;
}
.switch-and-stuff h4 {
margin: auto 25px;
color: #b3b5c6;
}
#media (min-width: 1100px) {
.cards-container {
display: flex;
flex-direction: row;
justify-content: center;
}
}
.card {
background: white;
display: flex;
flex-direction: column;
justify-items: center;
align-items: center;
margin-bottom: 40px;
padding: 30px;
border-radius: 10px;
}
.card h4 {
color: #b3b5c6;
}
.card h1 {
color: #170f61;
font-size: 5rem;
margin: 0px auto 10px auto;
}
.card div {
width: 110%;
height: 1.8px;
background: #b3b5c6;
}
#media (min-width: 1100px) {
.card {
margin: auto 20px;
}
}
.btn {
-webkit-user-select: none;
user-select: none;
margin-top: 20px;
width: 105%;
height: 40px;
background: linear-gradient(115deg, #a3a8f0 35%, #696fdd 100%);
border: 1px solid transparent;
padding: 0.375rem 0.75rem;
border-radius: 5px;
cursor: pointer;
}
.btn a {
color: white;
font-size: 0.9rem;
font-weight: 700;
letter-spacing: 1px;
text-decoration: none;
}
.btn:focus, .btn.focus {
outline: 0;
}
.card:hover {
transition: 0.5s ease-out;
transform: scale(1.1, 1.1);
background: linear-gradient(115deg, #a3a8f0 35%, #696fdd 100%);
}
.card:hover h4, .card:hover h1 {
color: white;
}
.card:hover .btn {
background: white;
}
.card:hover .btn a {
color: #696fdd;
}
.card:hover .btn:hover {
text-decoration: none;
background-color: #696fdd;
}
.card:hover .btn:hover a {
color: white;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="/css/style.css">
<link href="https://fonts.googleapis.com/css2?family=Montserrat:wght#400;600;700&display=swap" rel="stylesheet">
<title>Change the price</title>
</head>
<body>
<div class="container">
<div class="header-and-switch">
<h2>Our Pricing</h2>
<div class="switch-and-stuff">
<h4>Annually</h4>
<div>
<label class="switch">
<input type="checkbox">
<span class="slider round"></span>
</label>
</div>
<h4>Monthly</h4>
</div>
</div>
<div class="cards-container">
<div class="card">
<h4>Basic</h4>
<h1 class="priceBasic">$19.99</h1>
<div></div>
<h4 class="features1">500 GB Storage</h4>
<div></div>
<h4 class="features">2 users Allowed</h4>
<div></div>
<h4 class="features">Send up to 3 GB</h4>
<div></div>
<button class="btn">LEARN MORE </button>
</div>
<div class="card">
<h4>Professional</h4>
<h1 class="pricePro">$24.99</h1>
<div></div>
<h4 class="features1">500 GB Storage</h4>
<div></div>
<h4 class="features">5 users Allowed</h4>
<div></div>
<h4 class="features">Send up to 10 GB</h4>
<div></div>
<button class="btn">LEARN MORE </button>
</div>
<div class="card">
<h4>Master</h4>
<h1 class="priceMaster">$39.99</h1>
<div></div>
<h4 class="features1">2 TB Storage</h4>
<div></div>
<h4 class="features">10 users Allowed</h4>
<div></div>
<h4 class="features">Send up to 20 GB</h4>
<div></div>
<button class="btn">LEARN MORE </button>
</div>
</div>
</div>
<script src="index.js"></script>
</body>
</html>

what I would do:
the 2 prices are present on the interface but always with one or the other hidden.
example code of this system:
const AllPrices = document.querySelectorAll('h1.price')
priceToggle.onclick=_=>
{
AllPrices.forEach(p=>p.classList.toggle('annual'))
}
button {
display:block; margin:2em
}
.priceBlock {
display: inline-block;
margin: .5em;
padding: .7em;
font-size: 1.2em;
background-color: #85d5d8;
color: navy;
}
h1.price span {
display: block;
width: 100%;
float: left;
clear: both;
text-align: center;
overflow: hidden;
}
h1.price span:nth-of-type(2) { height:0; }
h1.price.annual span:nth-of-type(1) { height:0; }
h1.price.annual span:nth-of-type(2) { height:auto; }
<button id="priceToggle"> price toggle </button>
<div class="priceBlock">
<h1 class="price">
<span>$19.99</span>
<span>$500.99</span>
</h1>
</div>
<div class="priceBlock">
<h1 class="price">
<span>$23.99</span>
<span>$250.99</span>
</h1>
</div>

How do I get my Body to be all black? Some of it is Grey?

https://gx0st.com
So, if you guys check that, at least on my resolution 1920x1080. It has grey at the bottom, so it isn't fitting all the way. And if you check https://gx0st.com/contact.html you will see the same. If you guys could please help a noobie, I'd appreciate it. I just want it to be all black, and fit.
If you guys have any recommendations too on how to optimize it for mobile, that'd be fun. I will look into that anywho. But thanks to anyone who helps me with the first problem. <3
<!DOCTYPE html>
<html>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<div id="page-wrapper">
<header id="header">
<div class="logo">
</div>
<nav id="nav-bar">
<ul>
<li><b>Youtube</b></li>
<li><b>Contact</b></li>
</ul>
</nav>
</header>
<div class="container"></div>
<section id="hero">
<form id="form"
action="mailto:godislove1427#gmail.com">
<input
name="email"
id="email"
type="email"
placeholder="Email Address"
required/>
<input id="submit" type="submit"
value="HQ" class="btn" /></input></form>
</section>
</section>
<section id="how-it-works">
<iframe
id="video"
height="315"
src="https://www.youtube-nocookie.com/embed/mjq6kZSwTmI"
frameborder="0"
allowfullscreen></iframe></section>
<section id="pricing">
<div class="product" id="tenor">
<ul>
</div>
</section>
<footer>
<span>Copyright 2018, Ghost Robles</span>
</footer>
</div>
</div>
</html>
<style>
#font-face {font-family: 'vcr_osd_mono-webfont'; src: url('vcr_osd_mono-webfont.eot'); src: url('vcr_osd_mono-webfont.eot?#iefix') format('embedded-opentype'), url('vcr_osd_mono-webfont.woff2') format('woff2'), url('vcr_osd_mono-webfont.woff') format('woff'), url('vcr_osd_mono-webfont.ttf') format('truetype'), url('webfont.svg#svgFontname') format('svg');}
title {text-align: center;
font-family: "vcr_osd_mono-webfont";}
h2 {text-align: center;
font-family: "vcr_osd_mono-webfont";}
p {text-align: center;
color: purple;
font-family: "vcr_osd_mono-webfont";}
nav {text-align: center;}
body {background-color: rgb(0, 0, 0);
cursor: url(http://cur.cursors-4u.net/toons/too-3/too297.cur), auto;}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
#page-wrapper {
position: relative;
}
li {
list-style: none;
}
a {
color: rgb(255, 2, 2);
text-decoration: none;
font-size: 35px;
font-family: "vcr_osd_mono-webfont";
}
/** global classes styling **/
.container {
max-width: 1000px;
width: 100%;
margin: 0 auto;
}
.btn {
padding: 0 20px;
height: 40px;
font-size: 1em;
font-weight: 900;
text-transform: uppercase;
border: 3px rgb(255, 0, 0) solid;
border-radius: 2px;
background: transparent;
cursor: pointer;
}
.grid {
display: flex;
}
header {
position: fixed;
top: 0;
min-height: 75px;
padding: 0px 20px;
display: flex;
justify-content: space-around;
align-items: center;
background-color: rgb(0, 0, 0);
}
#media (max-width: 600px) {
header {
flex-wrap: wrap;
}
}
.logo {
width: 60vw;
}
#media (max-width: 650px) {
.logo {
margin-top: 15px;
width: 100%;
position: relative;
}
}
.logo > img {
width: 100%;
height: 100%;
max-width: 300px;
display: flex;
justify-content: center;
align-items: center;
text-align: center;
margin-left: 20px;
}
#media (max-width: 650px) {
.logo > img {
margin: 0 auto;
}
}
nav {
font-weight: 400;
}
#media (max-width: 650px) {
nav {
margin-top: 10px;
width: 100%;
display: flex;
flex-direction: column;
align-items: center;
text-align: center;
padding: 0 50px;
}
nav li {
padding-bottom: 5px;
}
}
nav > ul {
width: 35vw;
display: flex;
flex-direction: row;
justify-content: space-around;
}
#media (max-width: 650px) {
nav > ul {
flex-direction: column;
}
}
#hero {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
height: 200px;
margin-top: 50px;
}
#hero > h2 {
margin-bottom: 20px;
word-wrap: break-word;
}
#hero input[type="email"] {
max-width: 275px;
width: 100%;
padding: 5px;
}
#hero input[type="submit"] {
max-width: 150px;
width: 100%;
height: 30px;
margin: 15px 0;
border: 0;
background-color: #c300ffea;
}
#media (max-width: 650px) {
#hero {
margin-top: 120px;
}
}
#features {
margin-top: 30px;
}
#media (max-width: 550px) {
#features .icon {
display: none;
}
}
#features .desc {
display: flex;
flex-direction: column;
justify-content: center;
height: 125px;
width: 80vw;
padding: 5px;
}
#media (max-width: 550px) {
#features .desc {
width: 100%;
text-align: center;
padding: 0;
height: 150px;
}
}
#media (max-width: 650px) {
#features {
margin-top: 0;
}
}
#how-it-works {
margin-top: 50px;
display: flex;
justify-content: center;
}
#how-it-works > iframe {
max-width: 560px;
width: 100%;
}
#pricing {
margin-top: 60px;
display: flex;
flex-direction: row;
justify-content: center;
}
.product > .level {
background-color: rgb(0, 0, 0);
color: rgb(0, 0, 0);
padding: 15px 0;
width: 100%;
text-transform: uppercase;
font-weight: 700;
}
.product > h2 {
margin-top: 15px;
}
.product > ol {
margin: 15px 0;
}
.product > ol > li {
padding: 5px 0;
}
.product > button:hover {
background-color: rgb(0, 0, 0);
transition: background-color 1s;
}
#media (max-width: 800px) {
#pricing {
flex-direction: column;
}
.product {
max-width: 300px;
width: 100%;
margin: 0 auto;
margin-bottom: 10px;
}
}
footer {
margin-top: 30px;
background-color: rgb(0, 0, 0);
padding: 20px;
}
footer > ul {
display: flex;
justify-content: flex-end;
}
footer > ul > li {
padding: 0 10px;
}
footer > span {
margin-top: 5px;
display: flex;
justify-content: flex-end;
font-size: 0.9em;
color: rgb(255, 0, 0);
}
::placeholder {text-align: center;}
.btn {color: rgb(255, 255, 255);}
</style>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-137617043-2"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-137617043-2');
</script>
</html>
**Contact.HTML**
<!DOCTYPE html>
<html>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link
rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.8.2/css/all.css"
<!-- START NAV -->
<nav id="navbar" class="nav">
<ul class="nav-list">
<li>
HQ
</li>
</ul>
</nav>
<!-- END NAV -->
<!-- START CONTACT SECTION -->
<body>
<section id="contact" class="contact-section">
<div class="contact-section-header">
<h2>Let's work together!</h2>
</div>
<div class="contact-links">
<a
href="https://www.instagram.com/ghostrobles"
target="_blank"
class="btn contact-details"
><i class="fab fa-instagram"></i> Instagram</a
>
<a
id="profile-link"
href="https://www.youtube.com/channel/UCSM3fpzXloGLNL7N6qnjamA"
target="_blank"
class="btn contact-details"
><i class="fab fa-youtube"></i> Youtube</a
>
<a
>
<a href="mailto:godislove1427#gmail.com" class="btn contact-details"
><i class="fas fa-at"></i> Gmail</a
>
</div>
</section>
</body>
<!-- END CONTACT SECTION -->
<!-- START FOOTER SECTION -->
<footer class="site-footer">
<div id="footer-content">
<a href="https://www.youtube.com/channel/UCSM3fpzXloGLNL7N6qnjamA"
©Ghost Robles>
<a href="https://www.youtube.com/channel/UCSM3fpzXloGLNL7N6qnjamA" target="_blank"
>©Ghost Robles
</a>
</p>
<!-- END FOOTER SECTION -->
</footer>
<style>
#font-face {font-family: 'vcr_osd_mono-webfont'; src: url('vcr_osd_mono-webfont.eot'); src: url('vcr_osd_mono-webfont.eot?#iefix') format('embedded-opentype'), url('vcr_osd_mono-webfont.woff2') format('woff2'), url('vcr_osd_mono-webfont.woff') format('woff'), url('vcr_osd_mono-webfont.ttf') format('truetype'), url('webfont.svg#svgFontname') format('svg');}
/* Custom properties/variables */
:root {
--main-white: #ff0000;
--main-red: #000000;
--main-blue: #000000;
--main-gray: #000000;
}
/* Base reset */
* {
margin: 0;
padding: 0;
}
/* box-sizing and font sizing */
*,
*::before,
*::after {
box-sizing: inherit;
}
html {
box-sizing: border-box;
/* Set font size for easy rem calculations
* default document font size = 16px, 1rem = 16px, 100% = 16px
* (100% / 16px) * 10 = 62.5%, 1rem = 10px, 62.5% = 10px
*/
font-size: 62.5%;
scroll-behavior: smooth;
}
/* A few media query to set some font sizes at different screen sizes.
* This helps automate a bit of responsiveness.
* The trick is to use the rem unit for size values, margin and padding.
* Because rem is relative to the document font size
* when we scale up or down the font size on the document
* it will affect all properties using rem units for the values.
*/
/* I am using the em unit for breakpoints
* The calculation is the following
* screen size divided by browser base font size
* As an example: a breakpoint at 980px
* 980px / 16px = 61.25em
*/
/* 1200px / 16px = 75em */
#media (max-width: 75em) {
html {
font-size: 60%;
}
}
/* 980px / 16px = 61.25em */
#media (max-width: 61.25em) {
html {
font-size: 58%;
}
}
/* 460px / 16px = 28.75em */
#media (max-width: 28.75em) {
html {
font-size: 55%;
}
}
/* Base styles */
body {
font-family: "vcr_osd_mono-webfont";
font-size: 1.8rem; /* 18px */
font-weight: 400;
line-height: 1.4;
color: rgb(108, 6, 204);
}
h1,
h2 {
font-family: 'Raleway', sans-serif;
font-weight: 700;
text-align: center;
}
h1 {
font-size: 6rem;
}
h2 {
font-size: 4.2rem;
}
ul {
list-style: none;
}
a {
text-decoration: none;
color: var(--main-white);
}
img {
display: block;
width: 100%;
}
/* nav */
.nav {
display: flex;
justify-content: flex-end;
position: fixed;
top: 0;
left: 0;
width: 100%;
background: var(--main-red);
box-shadow: 0 2px 0 rgba(0, 0, 0, 0.4);
z-index: 10;
}
.nav-list {
display: flex;
margin-right: 2rem;
}
#media (max-width: 28.75em) {
.nav {
justify-content: center;
}
.nav-list {
margin: 0 1rem;
}
}
.nav-list a {
display: block;
font-size: 2.2rem;
padding: 2rem;
}
.nav-list a:hover {
background: var(--main-blue);
}
/* Welcome section */
.welcome-section {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
width: 100%;
height: 100vh;
background-color: #000;
background-image: linear-gradient(62deg, #3a3d40 0%, #181719 100%);
}
.welcome-section > p {
font-size: 3rem;
font-weight: 200;
font-style: italic;
color: var(--main-red);
}
/* Projects section */
.projects-section {
text-align: center;
padding: 10rem 2rem;
background: var(--main-blue);
}
.projects-section-header {
max-width: 640px;
margin: 0 auto 6rem auto;
border-bottom: 0.2rem solid var(--main-white);
}
#media (max-width: 28.75em) {
.projects-section-header {
font-size: 4rem;
}
}
/* "Automagic" image grid using no media queries */
.projects-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
grid-gap: 4rem;
width: 100%;
max-width: 1280px;
margin: 0 auto;
margin-bottom: 6rem;
}
#media (max-width: 30.625em) {
.projects-section {
padding: 6rem 1rem;
}
.projects-grid {
grid-template-columns: 1fr;
}
}
.project {
background: var(--main-gray);
box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
border-radius: 2px;
}
.code {
color: var(--main-gray);
transition: color 0.3s ease-out;
}
.project:hover .code {
color: #ff7f50;
}
.project-image {
height: calc(100% - 6.8rem);
width: 100%;
object-fit: cover;
}
.project-title {
font-size: 2rem;
padding: 2rem 0.5rem;
}
.btn {
display: inline-block;
padding: 1rem 2rem;
border-radius: 2px;
}
.btn-show-all {
font-size: 2rem;
background: var(--main-gray);
transition: background 0.3s ease-out;
}
.btn-show-all:hover {
background: var(--main-red);
}
.btn-show-all:hover > i {
transform: translateX(2px);
}
.btn-show-all > i {
margin-left: 10px;
transform: translateX(0);
transition: transform 0.3s ease-out;
}
/* Contact section */
.contact-section {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
text-align: center;
width: 100%;
height: 80vh;
padding: 0 2rem;
background: var(--main-gray);
}
.contact-section-header > h2 {
font-size: 6rem;
}
#media (max-width: 28.75em) {
.contact-section-header > h2 {
font-size: 4rem;
}
}
.contact-section-header > p {
font-style: italic;
}
.contact-links {
display: flex;
justify-content: center;
width: 100%;
max-width: 980px;
margin-top: 4rem;
flex-wrap: wrap;
}
.contact-details {
font-size: 2.4rem;
text-shadow: 2px 2px 1px #000000;
transition: transform 0.3s ease-out;
}
.contact-details:hover {
transform: translateY(8px);
}
/* Footer */
footer {
font-weight: 300;
display: default;
justify-content: space-evenly;
padding: 2rem;
background: var(--main-gray);
border-top: 4px solid var(--main-red);
}
footer > p {
margin: 2rem;
}
footer i {
vertical-align: middle;
}
#media (max-width: 28.75em) {
footer {
flex-direction: column;
text-align: center;
}
}
.site-footer {
background: rgb(0, 0, 0);
}
#footer-content {
background: rgb(0, 0, 0);
}
</style>

To make the black fill all the page, just type at the css:
html, body{
height: 100vh;
}
body{
z-index: -1;
}
And change the z-index of the nav to 1.

You can always provide a background color to the body element
body{
background-color: black;
}
This color should persist through window resizing as well

I think that just setting the body height to 100% will fix it.
CSS:
html, body{
height: 100%;
background-color: black;
}

The reason for that is that the content you've added and the way you style it does not fill the entire screen, therefore the color ends where your 'last element' is placed.
setting height: 100vh will make the height of the element the same as the height of the screen itself. Avoid setting heights in the body, your webpage might grow and that will become a problem.