Develop Reference

Trouble understanding navbar dropdown menu

I'm trying to make a nav bar I found on CodePen, but the problem is it doesn't have a dropdown menu. I know how to make a dropdown menu, but don't know how to position and style it as of now. I'm still fairly new to CSS.
Any help is very much appreciated, thank you!
If the code is not responsive, here's the original.
https://codepen.io/WebDevSimplified/pen/LqKQRK
<nav class="navbar">
<a div class="brand-title" href="submissions.html">AESTHETIC PRESS</a></div>
<a href="#" class="toggle-button">
<span class="bar"></span>
<span class="bar"></span>
<span class="bar"></span>
</a>
<div class="navbar-links">
<ul>
<li>Home</li>
<li> Books</li>
<ul>
<li>Young Adult</li>
<li>Adult</li>
<li>Non-Fiction</li>
</ul>
</li>
<li>Author</li>
<li>About Us</li>
<ul>
<li>Our Team</li>
</ul>
</li>
<li>News</li>
<li>Contact Us <i class="fa-solid fa-caret-down"></i>
<ul>
<li>Submissions</li>
<li>Permissions</li>
<li>Translation</li>
<li>Press</li>
<li>Hiring</li>
<li>Contact</li>
</ul>
</li>
</div>
</nav>
.navbar {
display: flex;
position: relative;
justify-content: space-between;
align-items: center;
background-color: #333;
color: white;
height: 100px;
}
.brand-title {
text-decoration: none;
color: white;
font-size: 2.0rem;
margin: 1.5rem;
cursor: pointer;
}
.brand-title:hover {
color: white;
}
.navbar-links {
padding: 0px;
margin-right: 35%;
border: red dotted 3px;
}
.navbar-links ul {
display: flex;
margin: 0;
padding: 0;
}
.navbar-links li {
list-style: none;
}
.navbar-links li a {
display: block;
text-decoration: none;
color: white;
padding: 1rem;
}
.navbar-links li:hover {
background-color: #555;
}
.toggle-button {
position: absolute;
top: .75rem;
right: 1rem;
display: none;
flex-direction: column;
justify-content: space-between;
width: 30px;
height: 21px;
}
.toggle-button .bar {
height: 3px;
width: 100%;
background-color: white;
border-radius: 10px;
}
#media (max-width: 800px) {
.navbar {
flex-direction: column;
align-items: flex-start;
}
.toggle-button {
display: flex;
}
.navbar-links {
display: none;
width: 100%;
}
.navbar-links ul {
width: 100%;
flex-direction: column;
}
.navbar-links ul li {
text-align: center;
}
.navbar-links ul li a {
padding: .5rem 1rem;
}
.navbar-links.active {
display: flex;
}
}

I guess you want nested dropdown in navigation link. Also you can use bootstrap navbar or w3school navbar.
(function($) { // Begin jQuery
$(function() { // DOM ready
// If a link has a dropdown, add sub menu toggle.
$('nav ul li a:not(:only-child)').click(function(e) {
$(this).siblings('.nav-dropdown').toggle();
// Close one dropdown when selecting another
$('.nav-dropdown').not($(this).siblings()).hide();
e.stopPropagation();
});
// Clicking away from dropdown will remove the dropdown class
$('html').click(function() {
$('.nav-dropdown').hide();
});
// Toggle open and close nav styles on click
$('#nav-toggle').click(function() {
$('nav ul').slideToggle();
});
// Hamburger to X toggle
$('#nav-toggle').on('click', function() {
this.classList.toggle('active');
});
}); // end DOM ready
})(jQuery); // end jQuery
.navigation {
height: 70px;
background: #262626;
}
.brand {
position: absolute;
padding-left: 20px;
float: left;
line-height: 70px;
text-transform: uppercase;
font-size: 1.4em;
}
.brand a, .brand a:visited {
color: #fff;
text-decoration: none;
}
.nav-container {
max-width: 1000px;
margin: 0 auto;
}
nav {
float: right;
}
nav ul {
list-style: none;
margin: 0;
padding: 0;
}
nav ul li {
float: left;
position: relative;
}
nav ul li a, nav ul li a:visited {
display: block;
padding: 0 20px;
line-height: 70px;
background: #262626;
color: #fff;
text-decoration: none;
}
nav ul li a:hover, nav ul li a:visited:hover {
background: #2581dc;
color: #fff;
}
nav ul li a:not(:only-child):after, nav ul li a:visited:not(:only-child):after {
padding-left: 4px;
content: ' ▾';
}
nav ul li ul li {
min-width: 190px;
}
nav ul li ul li a {
padding: 15px;
line-height: 20px;
}
.nav-dropdown {
position: absolute;
display: none;
z-index: 1;
box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
}
/* Mobile navigation */
.nav-mobile {
display: none;
position: absolute;
top: 0;
right: 0;
background: #262626;
height: 70px;
width: 70px;
}
#media only screen and (max-width: 798px) {
.nav-mobile {
display: block;
}
nav {
width: 100%;
padding: 70px 0 15px;
}
nav ul {
display: none;
}
nav ul li {
float: none;
}
nav ul li a {
padding: 15px;
line-height: 20px;
}
nav ul li ul li a {
padding-left: 30px;
}
.nav-dropdown {
position: static;
}
}
#media screen and (min-width: 799px) {
.nav-list {
display: block !important;
}
}
#nav-toggle {
position: absolute;
left: 18px;
top: 22px;
cursor: pointer;
padding: 10px 35px 16px 0px;
}
#nav-toggle span, #nav-toggle span:before, #nav-toggle span:after {
cursor: pointer;
border-radius: 1px;
height: 5px;
width: 35px;
background: #fff;
position: absolute;
display: block;
content: '';
transition: all 300ms ease-in-out;
}
#nav-toggle span:before {
top: -10px;
}
#nav-toggle span:after {
bottom: -10px;
}
#nav-toggle.active span {
background-color: transparent;
}
#nav-toggle.active span:before, #nav-toggle.active span:after {
top: 0;
}
#nav-toggle.active span:before {
transform: rotate(45deg);
}
#nav-toggle.active span:after {
transform: rotate(-45deg);
}
article {
max-width: 1000px;
margin: 0 auto;
padding: 10px;
}
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<section class="navigation">
<div class="nav-container">
<div class="brand">
Logo
</div>
<nav>
<div class="nav-mobile"><a id="nav-toggle" href="#!"><span></span></a></div>
<ul class="nav-list">
<li>
Home
</li>
<li>
About
</li>
<li>
Services
<ul class="nav-dropdown">
<li>
Web Design
</li>
<li>
Web Development
</li>
<li>
Graphic Design
</li>
</ul>
</li>
<li>
Pricing
</li>
<li>
Portfolio
<ul class="nav-dropdown">
<li>
Web Design
</li>
<li>
Web Development
</li>
<li>
Graphic Design
</li>
</ul>
</li>
<li>
Contact
</li>
</ul>
</nav>
</div>
</section>
<article>
<h2>Navigation</h2>
<p>Responsive Dropdown Navigation Bar.</p>
</article>

Accordingly to your reply to my comment I have added some code to yours.
So please check the code from https://codepen.io/13rpsingh/pen/poajyXK
window.addEventListener("load", ()=>{
let toggleButton = document.querySelector(".toggle-button");
let navbarLinks = document.querySelector(".navbar-links");
toggleButton.addEventListener('click', (e)=>{
if(navbarLinks.classList.contains("active")){
navbarLinks.classList.remove("active")
toggleButton.classList.remove("active")
}else{
navbarLinks.classList.add("active")
toggleButton.classList.add("active")
}
})
let menuDropDown = document.querySelector(".navbar-links ul li ul");
let dropDownTrigger = document.querySelector("#dropdown-trigger");
if(dropDownTrigger){
dropDownTrigger.addEventListener('click', (e) =>{
if(menuDropDown.style.display == "flex"){
menuDropDown.style.display = "none";
}else{
menuDropDown.style.display = "flex";
}
})
}
})
.navbar {
display: flex;
position: relative;
justify-content: space-between;
align-items: center;
background-color: #333;
color: white;
height: max-content;
max-width:100%;
}
.brand-title {
text-decoration: none;
color: white;
font-size: 2.0rem;
margin: 1.5rem;
cursor: pointer;
}
.brand-title:hover {
color: white;
}
.navbar-links {
padding: 0px;
margin-right: 35%;
border: red dotted 3px;
}
.navbar-links ul {
display: flex;
margin: 0;
padding: 0;
}
.navbar-links li {
list-style: none;
}
.navbar-links li a {
display: block;
text-decoration: none;
color: white;
padding: 1rem;
}
.navbar-links li:hover {
background-color: #555;
}
.toggle-button {
position: absolute;
top: .75rem;
right: 1rem;
display: none;
flex-direction: column;
justify-content: space-between;
width: 30px;
height: 21px;
}
.toggle-button .bar {
height: 3px;
width: 100%;
background-color: white;
border-radius: 10px;
}
#media (max-width: 800px) {
.navbar {
flex-direction: column;
align-items: flex-start;
}
.toggle-button {
display: flex;
}
.toggle-button .bar{
position: absolute;
transition: all .3s ease-in-out;
}
.toggle-button .bar:nth-of-type(1){
top: 0;
}
.toggle-button .bar:nth-of-type(2){
top: 50%;
transform : translateY(-50%);
}
.toggle-button .bar:nth-of-type(3){
bottom: 0;
}
.toggle-button.active .bar:nth-of-type(1){
top: 50%;
transform: rotate(-45deg) translateY(-50%);
}
.toggle-button.active .bar:nth-of-type(2){
display:none;
}
.toggle-button.active .bar:nth-of-type(3){
bottom: 50%;
transform: rotate(45deg) translateY(50%);
}
.navbar-links {
display: none;
width: 100%;
}
.navbar-links ul {
width: 100%;
flex-direction: column;
}
.navbar-links ul li {
text-align: center;
position:relative;
}
.navbar-links ul li a {
padding: .5rem 1rem;
}
.navbar-links.active {
display: flex;
}
}
.navbar-links ul li ul{
display:none;
flex-direction: column;
position:absolute;
background:#d0d0d0;
max-width: 100%;
}
.navbar-links ul li ul li a{
color : black;
}
.navbar-links ul li ul li a:hover{
color : white;
}
<nav class="navbar">
<a div class="brand-title" href="submissions.html">AESTHETIC PRESS</a></div>
<a href="#" class="toggle-button">
<span class="bar"></span>
<span class="bar"></span>
<span class="bar"></span>
</a>
<div class="navbar-links">
<ul>
<li>Home</li>
<li> Books</li>
<ul>
<li>Young Adult</li>
<li>Adult</li>
<li>Non-Fiction</li>
</ul>
</li>
<li>Author</li>
<li>About Us</li>
<ul>
<li>Our Team</li>
</ul>
</li>
<li>News</li>
<li id="dropdown-trigger">Contact Us <i class="fa-solid fa-caret-down"></i>
<ul>
<li>Submissions</li>
<li>Permissions</li>
<li>Translation</li>
<li>Press</li>
<li>Hiring</li>
<li>Contact</li>
</ul>
</li>
</div>
</nav>
Maybe, you can easily understand the code which I added.
I hope It will help

showing sub menu always when clicked on it

I have a problem with side navigation bar. When i clicked on sub menu link menu goes hide. But I want to open always when i clicked on sub menu link. It goes hide when main menu clicked.
My code below:
$(document).ready(function() {
$('#menu li > a').click(function(e) {
$(this).addClass("selected");
if ($(this).next('ul').length > 0) {
e.preventDefault();
var subNav = $(this).next('ul');
if (subNav.is(':visible')) {
subNav.slideUp('normal')
} else {
$('#menu ul:visible').slideUp('normal');
subNav.slideDown('normal');
$("a.selected").removeClass("selected");
$(this).addClass("selected");
}
}
});
$('.nav-trigger').click(function() {
$('.side-nav').addClass('visible');
});
});
.side-nav.visible {
display: block;
}
.side-nav {
position: absolute;
width: 100%;
height: 100%;
background-color: #2e3e4e;
z-index: 99;
display: none;
overflow-y: auto;
}
.side-nav #menu {
margin: 0;
padding: 0;
}
.side-nav #menu ul {
display: none
}
.side-nav #menu,
.side-nav #menu ul {
list-style-type: none;
margin: 0;
padding: 0;
}
.side-nav #menu>li {
background-color: #2e3e4e;
list-style: none;
position: relative;
}
.side-nav #menu>li>a {
padding: 16px 16px;
border-bottom: 1px solid #3A4B5C;
width: 100%;
display: block;
text-decoration: none;
color: #f2f2f2;
font-size: 1.2em;
}
.side-nav #menu li a:hover {
color: #ccc;
text-decoration: none;
}
.side-nav #menu li ul li a {
background-color: #384858;
color: #fff;
width: 100%;
display: block;
padding: 16px 16px;
border-bottom: 1px solid #2e3e4e;
text-decoration: none;
}
.side-nav #menu li ul li a:hover {
color: #2addd4;
text-decoration: none;
background-color: #2e3e4e;
}
.side-nav #menu li ul li a::before {
display: inline-block;
cursor: pointer;
width: 10px;
height: 10px;
content: "\f0da";
font-family: FontAwesome;
left: 0px;
position: relative;
top: 0;
background-color: transparent;
}
.side-nav #menu li ul li a:hover::before {
display: inline-block;
cursor: pointer;
width: 10px;
height: 10px;
content: "\f0da";
font-family: FontAwesome;
left: 0px;
position: relative;
top: 0;
background-color: transparent;
}
.selected {
z-index: 9999;
border-left: 2px;
}
.side-nav ul li a:hover:after {
content: '';
position: absolute;
width: 4px;
height: 100%;
top: 0;
left: 0;
background-color: #2addd4;
}
.side-nav ul li a.selected:after {
content: '';
position: absolute;
width: 4px;
height: 100%;
top: 0;
left: 0;
background-color: #2addd4;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="side-nav">
<nav>
<ul id="menu">
<li>
<span><i class="fa fa-dashboard"></i></span> <span>Dashboard</span>
<ul>
<li>page1</li>
</ul>
</li>
<li>
<span><i class="fa fa-user"></i></span> <span>User Page</span>
</li>
<li>
<span><i class="fa fa-user"></i></span> <span>Admin Page</span>
<ul>
<li>adminpage 1</li>
<li>adminpage 2</li>
</ul>
</li>
</ul>
</nav>
</div>

JavaScript + CSS Single Collapsible Vertical Menu

Everybody, I have been learning and trying to make a collapsible vertical menu using JavaScript and CSS.
What should I do so that when I expand both menus and I click again on user 1, the user 2 will be hidden?
Here's the coding:
body {
background:#ffffff;
margin: 0 auto;
}
#nav{
width: 200px;
padding: 0;
margin-bottom: 0px;
font-size: 10px;
font-family: Verdana;
color: #999999;
}
#nav ul {
list-style: none;
margin: 0;
padding: 0;
border: none;
}
#nav li {
border-bottom: 1px solid #fff;
margin: 0;
width: auto;
}
li ul {
border-bottom: 1px solid #000000;
border-top: 1px solid #000000;
position: relative;
display:none;
}
ul li a {
display:block;
text-decoration: none;
color: #000000;
background: #8CDD81;
line-height:2em;
height:2em;
padding:2px 2px
}
li li a {
background:#D7DBDD
}
li:hover li a, li.over li a {
background-color: #D7DBDD;
}
li a:hover,
li:hover a, li.over a,
li:hover li a:hover, li.over li a:hover {
color: #000000;
background-color: #F4D03F ;
}
header {
font-family: 'Lobster', cursive;
text-align: center;
font-size: 25px;
}
#info {
font-size: 18px;
color: #555;
text-align: center;
margin-bottom: 25px;
}
a{
color: #074E8C;
}
.scrollbar {
margin-left: 30px;
float: left;
height: 200px;
width: 210px;
background: #F5F5F5;
overflow-y: scroll;
margin-bottom: 25px;
}
.force-overflow {
min-height: 450px;
}
#wrapper {
text-align: center;
width: 500px;
margin: auto;
}
/*
* STYLE 4
*/
#style-4::-webkit-scrollbar-track
{
-webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);
background-color: #F5F5F5;
}
#style-4::-webkit-scrollbar
{
width: 10px;
background-color: #cccccc;
}
#style-4::-webkit-scrollbar-thumb
{
background-color: #9fa6ad;
border: 2px solid #9fa6ad;
}
li ul li {}
li.on ul {
display:block
}
li.off ul {
display:none
}
<script type="text/javascript">
<!--//--><![CDATA[//><!--
startList = function() {
if (document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onclick=function() {
this.className = (this.className == "on") ? "off" : "on";
}
}
}
}
}
window.onload=startList;
//--><!]]>
</script>
<body>
<id="wrapper">
<div class="scrollbar" id="style-4" class="force-overflow">
<ul id="nav">
<li><strong>MENU</strong></li>
<li><strong>User 1 ></strong>
<ul>
<li>Name </li>
<li>Age</li>
</ul>
</li>
<li><strong>User 2 ></strong>
<ul>
<li>Name</li>
<li>Age</li>
</ul>
</li>
</div>
</div>
</ul>
</body>

off previously selected li by removing on class from other element
if(document.getElementsByClassName("on").length>0)
document.getElementsByClassName("on")[0].className = "off";
body {
background: #ffffff;
margin: 0 auto;
}
#nav {
width: 200px;
padding: 0;
margin-bottom: 0px;
font-size: 10px;
font-family: Verdana;
color: #999999;
}
#nav ul {
list-style: none;
margin: 0;
padding: 0;
border: none;
}
#nav li {
border-bottom: 1px solid #fff;
margin: 0;
width: auto;
}
li ul {
border-bottom: 1px solid #000000;
border-top: 1px solid #000000;
position: relative;
display: none;
}
ul li a {
display: block;
text-decoration: none;
color: #000000;
background: #8CDD81;
line-height: 2em;
height: 2em;
padding: 2px 2px
}
li li a {
background: #D7DBDD
}
li:hover li a,
li.over li a {
background-color: #D7DBDD;
}
li a:hover,
li:hover a,
li.over a,
li:hover li a:hover,
li.over li a:hover {
color: #000000;
background-color: #F4D03F;
}
header {
font-family: 'Lobster', cursive;
text-align: center;
font-size: 25px;
}
#info {
font-size: 18px;
color: #555;
text-align: center;
margin-bottom: 25px;
}
a {
color: #074E8C;
}
.scrollbar {
margin-left: 30px;
float: left;
height: 200px;
width: 210px;
background: #F5F5F5;
overflow-y: scroll;
margin-bottom: 25px;
}
.force-overflow {
min-height: 450px;
}
#wrapper {
text-align: center;
width: 500px;
margin: auto;
}
/*
* STYLE 4
*/
#style-4::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
background-color: #F5F5F5;
}
#style-4::-webkit-scrollbar {
width: 10px;
background-color: #cccccc;
}
#style-4::-webkit-scrollbar-thumb {
background-color: #9fa6ad;
border: 2px solid #9fa6ad;
}
li ul li {} li.on ul {
display: block
}
li.off ul {
display: none
}
<script type="text/javascript">
<!--//--><![CDATA[//><!--
startList = function() {
if (document.getElementById) {
navRoot = document.getElementById("nav");
for (i = 0; i < navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName == "LI") {
node.onclick = function() {
if(document.getElementsByClassName("on").length>0)
document.getElementsByClassName("on")[0].className = "off";
this.className = (this.className == "on") ? "off" : "on";
}
}
}
}
}
window.onload = startList;
//--><!]]>
</script>
<body>
<id="wrapper">
<div class="scrollbar" id="style-4" class="force-overflow">
<ul id="nav">
<li><strong>MENU</strong>
</li>
<li><strong>User 1 ></strong>
<ul>
<li>Name
</li>
<li>Age
</li>
</ul>
</li>
<li><strong>User 2 ></strong>
<ul>
<li>Name
</li>
<li>Age
</li>
</ul>
</li>
</div>
</div>
</ul>
</body>

You can use jQuery to reduce your coding efforts.
Following is the only code you need.
body {
background: #ffffff;
margin: 0 auto;
}
#nav {
width: 200px;
padding: 0;
margin-bottom: 0px;
font-size: 10px;
font-family: Verdana;
color: #999999;
}
#nav ul {
list-style: none;
margin: 0;
padding: 0;
border: none;
}
#nav li {
border-bottom: 1px solid #fff;
margin: 0;
width: auto;
}
li ul {
border-bottom: 1px solid #000000;
border-top: 1px solid #000000;
position: relative;
display: none;
}
ul li a {
display: block;
text-decoration: none;
color: #000000;
background: #8CDD81;
line-height: 2em;
height: 2em;
padding: 2px 2px
}
li li a {
background: #D7DBDD
}
li:hover li a,
li.over li a {
background-color: #D7DBDD;
}
li a:hover,
li:hover a,
li.over a,
li:hover li a:hover,
li.over li a:hover {
color: #000000;
background-color: #F4D03F;
}
header {
font-family: 'Lobster', cursive;
text-align: center;
font-size: 25px;
}
#info {
font-size: 18px;
color: #555;
text-align: center;
margin-bottom: 25px;
}
a {
color: #074E8C;
}
.scrollbar {
margin-left: 30px;
float: left;
height: 200px;
width: 210px;
background: #F5F5F5;
overflow-y: scroll;
margin-bottom: 25px;
}
.force-overflow {
min-height: 450px;
}
#wrapper {
text-align: center;
width: 500px;
margin: auto;
}
/*
* STYLE 4
*/
#style-4::-webkit-scrollbar-track {
-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
background-color: #F5F5F5;
}
#style-4::-webkit-scrollbar {
width: 10px;
background-color: #cccccc;
}
#style-4::-webkit-scrollbar-thumb {
background-color: #9fa6ad;
border: 2px solid #9fa6ad;
}
li ul li {} li.on ul {
display: block
}
li.off ul {
display: none
}
<script type="text/javascript" src='https://code.jquery.com/jquery-3.1.1.min.js'> </script>
<script type="text/javascript">
$(document).ready(function(){
$("#nav li").click(function(){
currentClass = $(this).attr('class');
$("#nav li").removeClass('on').addClass('off');
newClass = (currentClass == 'on' ? 'off' : 'on');
$(this).removeClass('off').addClass(newClass);
});
});
</script>
<body>
<id="wrapper">
<div class="scrollbar" id="style-4" class="force-overflow">
<ul id="nav">
<li class=''><strong>MENU</strong>
</li>
<li><strong>User 1 ></strong>
<ul>
<li>Name
</li>
<li>Age
</li>
</ul>
</li>
<li><strong>User 2 ></strong>
<ul>
<li>Name
</li>
<li>Age
</li>
</ul>
</li>
<li><strong>User 3 ></strong>
<ul>
<li>Name
</li>
<li>Age
</li>
</ul>
</li>
</div>
</div>
</ul>
</body>

I made this nav menu for reference. It's responsive to screen size too.
var btn = document.getElementById('navBtn');
var ul = document.getElementById('navUl');
btn.addEventListener("click", function(){
ul.classList.toggle("active");
});
#bar {
position: fixed;
top: 0px;
left: 0px;
width: 100%;
background-color: #333;
}
nav ul {
list-style: none;
padding: 0px;
margin: 0px;
}
nav ul li {
display: inline-block;
}
nav ul li a {
display: inline-block;
padding: 20px;
color: #fff;
font-family: Verdana;
text-decoration: none;
}
nav ul li:hover {
background-color: #666;
}
#navBtn {
display: none;
}
#media screen and (max-width: 500px) {
nav ul li,
nav ul li a {
text-align: center;
display: block;
}
nav ul {
display: none;
}
nav ul.active {
display: block;
}
#navBtn {
display: block;
width: 60px;
height: 60px;
border: 1px solid #fff;
background-color: #333;
color: #fff;
}
}
<div id="bar">
<button id="navBtn">☰</button>
<nav>
<ul id="navUl">
<li>home</li>
<li>news</li>
<li>contact</li>
<li>about</li>
</ul>
</nav>
</div>
As a side note, you can also technically do this with pure CSS (though, that's a bit tricky; you'd use a checkbox w/ labels for it).
Also, I saw your className = code, so I wanted to specifically point out the Element.classList bit in my code. It comes with .add(), .remove(), .toggle() and other useful methods.

HTML/CSS Jquery hover not showing up

I am new to Jquery and
I am trying to make a dropdown on my navigation using simple Jquery hover effect, and I think I am using wrong selector on Jquery.
I would like to see the dropdown and be able to navigate when i hover over 'What's New'
Any help would be awesome. Thanks,
See ATTACHED IMG
$(document).ready(function () {
$("li .nav-level-1").hover(
function () {
$('.nav-level-2').slideDown('200');
},
function () {
$('.nav-level-2').slideUp('200');
}
);
});
.main-nav {
background: #000;
height: 30px;
position: relative;
overflow: visible;
z-index: 2;
width: 100%;
left: 0;
cursor: default;
}
.main-nav .inner{
height: 100%;
}
.main-nav>.inner{
text-align: justify;
}
.nav-links-container {
position: static;
/* background: red; */
height: 100%;
}
.nav-links{
padding: 0 0 0 3px;
display: inline;
margin-bottom: 20px;
overflow: hidden;
/*background-color: green; */
}
li {
vertical-align: top;
padding: 5px;
display: inline-block;
/* background: blue; */
}
li>a {
color: #FFF;
font-size: 12px;
letter-spacing: 1px;
text-transform: uppercase;
padding: 10px 9px 9px;
margin: 0 -3px;
}
li>a:hover {
background-color: white;
color:#000;
}
.nav-level-2 {
visibility: hidden;
position: absolute;
top: 30px;
left: 0;
width: 100%;
height: auto;
border-bottom: 5px solid #000;
background: red;
text-align: left;
}
.nav-level-2-container {
padding-top: 40px;
padding-bottom: 40px;
-ms-flex: 0px 1px auto;
-webkit-box-flex: 0;
-webkit-flex: 0px 1px auto;
flex: 0px 1px auto;
}
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<nav class="main-nav">
<div class="inner max-girdle-width">
<div class="nav-links-container">
<ul class="nav-links">
<li class="nav-whats-new"> <a class="nav-level-1" href="#">What's New</a>
<div class="nav-level-2">
<div class="nav-level-2-container row max-girdle-width">
<div>Submenu </div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>

You should use a nested ul for your dropdown menu. You don't need jQuery at all for this. It can all be done with CSS. Take a look at this simple hover effect under the Products tab.
Codepen
HTML
<header class="navbar">
<div class="container">
<ul class="menu">
<li>Home</li>
<li>About</li>
<li>
Products
<ul>
<li>Cars
<ul>
<li>Ford</li>
<li>Chevy</li>
<li>Toyota</li>
</ul>
</li>
<li>Trucks</li>
<li>Vans</li>
<li>SUVs</li>
</ul>
</li>
<li>Services</li>
<li>Contact</li>
</ul>
</div>
</header>
CSS
header {
width: 100%;
height: 50px;
margin: 0;
padding: 0;
background-color: #2EBAE8;
}
.container {
width: 100%;
max-width: 1040px;
margin: 0 auto;
}
ul {
float: left;
list-style-type: none;
margin: 0;
padding: 0;
}
ul ul {
width: 200px;
background-color: #046382;
display: none;
position: absolute;
top: 100%;
left: 0;
float: none;
}
ul ul ul {
top: 0;
left: 100%;
}
ul ul li {
float: none;
}
ul li {
float: left;
padding: 0 10px;
position: relative;
}
ul li:hover > ul {
display: block;
}
ul a {
display: block;
text-decoration: none;
color: white;
line-height: 50px;
transition: color 0.5s;
}
ul a:hover {
color: #E82E82;
}

Your submenu is hidden with visibility: hidden style.
I also separated the handled so that the menu doesn't hide while you're hovering it, and added finish() so that we're not queueing animations.
But yeah, like ncox85 said you should do this with css.
$(document).ready(function () {
$('.nav-level-2').hide();
$("li .nav-level-1").mouseenter(
function () {
$('.nav-level-2').finish().slideDown('200');
}
);
$("li .nav-level-2").mouseleave(
function () {
$('.nav-level-2').finish().slideUp('200');
});
});
.main-nav {
background: #000;
height: 30px;
position: relative;
overflow: visible;
z-index: 2;
width: 100%;
left: 0;
cursor: default;
}
.main-nav .inner{
height: 100%;
}
.main-nav>.inner{
text-align: justify;
}
.nav-links-container {
position: static;
/* background: red; */
height: 100%;
}
.nav-links{
padding: 0 0 0 3px;
display: inline;
margin-bottom: 20px;
overflow: hidden;
/*background-color: green; */
}
li {
vertical-align: top;
padding: 5px;
display: inline-block;
/* background: blue; */
}
li>a {
color: #FFF;
font-size: 12px;
letter-spacing: 1px;
text-transform: uppercase;
padding: 10px 9px 9px;
margin: 0 -3px;
}
li>a:hover {
background-color: white;
color:#000;
}
.nav-level-2 {
position: absolute;
top: 30px;
left: 0;
width: 100%;
height: auto;
border-bottom: 5px solid #000;
background: red;
text-align: left;
}
.nav-level-2-container {
padding-top: 40px;
padding-bottom: 40px;
-ms-flex: 0px 1px auto;
-webkit-box-flex: 0;
-webkit-flex: 0px 1px auto;
flex: 0px 1px auto;
}
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<nav class="main-nav">
<div class="inner max-girdle-width">
<div class="nav-links-container">
<ul class="nav-links">
<li class="nav-whats-new"> <a class="nav-level-1" href="#">What's New</a>
<div class="nav-level-2">
<div class="nav-level-2-container row max-girdle-width">
<div>Submenu </div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>

Just use display:none instead of visibility:hidden on class .nav-level-2

If any of you are wondering, I got a good result from just using html/css, got rid of jquery.
Maybe I will use jquery another time. fun lesson for myself and those of you out there. Thanks guys
.main-nav {
background: #000;
height: 30px;
position: relative;
overflow: visible;
z-index: 2;
width: 100%;
left: 0;
cursor: default;
}
.main-nav .inner{
height: 100%;
}
.main-nav>.inner{
text-align: justify;
}
.nav-links-container {
position: static;
/* background: red; */
height: 100%;
}
.nav-links{
padding: 0 0 0 3px;
display: inline;
margin-bottom: 20px;
overflow: hidden;
/*background-color: green; */
}
li {
vertical-align: top;
padding: 5px;
display: inline-block;
/* background: blue; */
}
li>a {
color: #FFF;
font-size: 12px;
letter-spacing: 1px;
text-transform: uppercase;
padding: 10px 9px 9px;
margin: 0 -3px;
}
li>a:hover {
background-color: white;
color:#000;
}
.nav-level-2 {
display: none;
position: absolute;
top: 30px;
left: 0;
width: 100%;
height: auto;
border-bottom: 5px solid #000;
background: red;
text-align: left;
}
.nav-level-2-container {
padding-top: 40px;
padding-bottom: 40px;
-ms-flex: 0px 1px auto;
-webkit-box-flex: 0;
-webkit-flex: 0px 1px auto;
flex: 0px 1px auto;
}
li>a:hover + .nav-level-2{
display: block;
}
.nav-level-2:hover {
display: block;
}
<nav class="main-nav">
<div class="inner max-girdle-width">
<div class="nav-links-container">
<ul class="nav-links">
<li class="nav-whats-new"> <a class="nav-level-1" href="#">What's New</a>
<div class="nav-level-2">
<div class="nav-level-2-container row max-girdle-width">
<div>Submenu </div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>

Dropdown menu for webpage

I created a simple website for practice purposes. I'm trying to create a dropdown menu for the Items in navigation but when I ran the website, it doesn't show anything. All files are saved in desktop.
Here is the code for my html(main.html) with jquery(jquery-1.3.2.min.js):
function mainmenu() {
$(" #nav ul ").css({
display: "none"
});
$(" #nav li ").hover(function() {
$(this).find('ul:first').css({
visibility: "visible",
display: "none"
}).show(400);
}, function() {
$(this).find('ul:first').css({
visibility: "hidden"
});
});
}
$(document).ready(function() {
mainmenu();
});
body {
font-family: 'lucida grande', Tahoma, Verdana, Arial, sans-serif;
background-color: #e9e9e9;
}
#wrapper {
width: 1080px;
margin: 0 auto;
padding: 10px;
border: 5px solid #dedede;
background-color: #fff;
}
#banner {
height: 200px;
border: 3px solid #E3E3E3;
background-color: blue;
background-repeat: no-repeat;
background-size: cover;
}
#navigation {
height: 60px;
border: 3px solid #E3E3E3;
margin-top: 20px;
margin-left: 5px;
margin-right: 5px;
background-color: red;
text-shadow: 0.1em 0.1em #333;
}
#nav {
list-style: none;
}
#nav ul {
list-style: none;
margin: 0;
padding: 0;
width: auto;
display: none;
}
#nav li {
font-size: 24px;
float: left;
position: relative;
width: 180px;
height: 50px;
}
#nav li ul li {
background-color: green;
background-repeat: no-repeat;
background-size: cover;
border: 3px solid #E3E3E3;
padding-left: 10px;
}
#nav a:link,
#nav a:active,
#nav a:visited {
display: block;
color: #fff;
text-decoration: none;
}
#nav a:hover {
color: lightblue;
}
#content_area {
float: left;
width: 750px;
height: 382px;
margin: 20px 0px 20px 5px;
padding: 10px;
border: 3px solid #E3E3E3;
}
#sidebar {
float: right;
width: 250px;
height: 402px;
margin: 20px 10px 20px 10px;
border: 3px solid #E3E3E3;
background-color: yellow;
}
#footer {
clear: both;
width: auto;
height: 40px;
margin-top: 20px;
background-color: blue;
text-shadow: 0.1em 0.1em #333;
color: #fff;
text-align: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<div id="wrapper">
<div id="banner">
</div>
<div id="navigation">
<ul id="nav">
<li>Home
</li>
<li>Items
</li>
<ul>
<li>T-Shirt
</li>
<li>Pants
</li>
<li>Accessories
</li>
</ul>
<li>Shop
</li>
<li>About
</li>
</ul>
</div>
<div id="content_area">
</div>
<div id="sidebar">
</div>
<div id="footer">
<p>All rights reserved</p>
</div>
</div>

Yes the error is inside your code. You are trying to target the first ul inside the li but in your code you the ul is standalone/ outside the li.
<li>Items
</li>
<ul>
<li>T-Shirt
</li>
<li>Pants
</li>
<li>Accessories
</li>
</ul>
see the ul is out side the Items li, put it inside and it will work like this.
<li>Items
<ul>
<li>T-Shirt
</li>
<li>Pants
</li>
<li>Accessories
</li>
</ul>
</li>
You were putting a ul inside a ul directly.

The problem is not with your jQuery but with the HTML, you should wrap your dropdown menu (ul) with items (li)
function mainmenu() {
$(" #nav ul ").css({
display: "none"
});
$(" #nav li ").hover(function() {
$(this).find('ul:first').css({
visibility: "visible",
display: "none"
}).show(400);
}, function() {
$(this).find('ul:first').css({
visibility: "hidden"
});
});
}
$(document).ready(function() {
mainmenu();
});
body {
font-family: 'lucida grande', Tahoma, Verdana, Arial, sans-serif;
background-color: #e9e9e9;
}
#wrapper {
width: 1080px;
margin: 0 auto;
padding: 10px;
border: 5px solid #dedede;
background-color: #fff;
}
#banner {
height: 200px;
border: 3px solid #E3E3E3;
background-color: blue;
background-repeat: no-repeat;
background-size: cover;
}
#navigation {
height: 60px;
border: 3px solid #E3E3E3;
margin-top: 20px;
margin-left: 5px;
margin-right: 5px;
background-color: red;
text-shadow: 0.1em 0.1em #333;
}
#nav {
list-style: none;
}
#nav ul {
list-style: none;
margin: 0;
padding: 0;
width: auto;
display: none;
}
#nav li {
font-size: 24px;
float: left;
position: relative;
width: 180px;
height: 50px;
}
#nav li ul li {
background-color: green;
background-repeat: no-repeat;
background-size: cover;
border: 3px solid #E3E3E3;
padding-left: 10px;
}
#nav a:link,
#nav a:active,
#nav a:visited {
display: block;
color: #fff;
text-decoration: none;
}
#nav a:hover {
color: lightblue;
}
#content_area {
float: left;
width: 750px;
height: 382px;
margin: 20px 0px 20px 5px;
padding: 10px;
border: 3px solid #E3E3E3;
}
#sidebar {
float: right;
width: 250px;
height: 402px;
margin: 20px 10px 20px 10px;
border: 3px solid #E3E3E3;
background-color: yellow;
}
#footer {
clear: both;
width: auto;
height: 40px;
margin-top: 20px;
background-color: blue;
text-shadow: 0.1em 0.1em #333;
color: #fff;
text-align: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<div id="wrapper">
<div id="banner">
</div>
<div id="navigation">
<ul id="nav">
<li>Home
</li>
<li>Items
<ul>
<li>T-Shirt
</li>
<li>Pants
</li>
<li>Accessories
</li>
</ul>
</li>
<li>Shop
</li>
<li>About
</li>
</ul>
</div>
<div id="content_area">
</div>
<div id="sidebar">
</div>
<div id="footer">
<p>All rights reserved</p>
</div>
</div>