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My toggle button will not switch from left to right, I have coded in JavaScript and cannot find the bug?

First someone suggested it was a typo with my classList property and I made the necessary changes but it still is not working. I have js node downloaded but it still is not responding. Can anyone help? I cant yet find the bug i need some extra help. I have posted my css javascript and html files below
Here is my work..
var btn = document.getElementById("btn");
function togglebtn() {
btn.classList.toggle(".active");
}
*{
margin: 0;
padding: 0;
font-family: 'poppins', sans-serif;
box-sizing: border-box;
}
.hero{
background: #1d2026;
min-height: 100vh;
width: 100%;
color: #fff;
position: relative;
}
nav{
display: flex;
align-items: center;
}
nav .menu{
padding-right: 30px;
padding-left: 10px;
padding-bottom: 40px;
cursor: pointer;
}
nav .logo{
width: 500px;
height: 200px;
object-fit: none;
padding-right: 50px;
padding-bottom: 60px;
}
nav ul{
flex: 1;
text-align: right;
margin-right: 20px;
}
nav ul li{
display: inline-block;
list-style: none;
margin-right: 20px;
padding-bottom: 100px;
font-size: 25px;
margin: 0 20px;
}
nav ul a{
text-decoration: none;
color: #fff;
}
nav button{
background: #efefef;
height:30px ;
width: 60px;
border-radius: 20px;
border: 0;
outline: 0;
cursor: pointer;
margin-bottom: 100px;
margin-right: 20px;
}
nav button span{
display: block;
background: #999;
height: 26px;
width: 26px;
border-radius: 50%;
margin-left: 2px;
}
.lamp-set{
position: absolute;
top: -20px;
left: 22%;
width: 200px;
}
.lamp{
width: 100%;
}
.light{
position: absolute;
top: 97%;
left: 50%;
transform: translateX(-50%);
width: 700px;
margin-left: -10px;
opacity: 1;
}
.text-container{
max-width: 1000px;
margin-top: 2%;
margin-left: 50%;
}
.text-container h1{
font-size: 80px;
font-weight: 400;
display: inline-block;
color: #fff;
}
.text-container p{
font-size: 40px;
font-weight: 200;
display: inline-block;
color: #fff;
margin-top: 10px;
}
.emails{
background: #00a8f3;
padding: 14px 40px;
display: inline-block;
color: #fff;
font-size: 25px;
margin-top: 30px;
margin-left: 50%;
border-radius: 30px;
}
.active{
background: turquoise;
}
.active span{
background:#ffff ;
margin-left: 31px;
}
<div class="hero">
<nav>
<img src="menu.png" class="menu">
<img src="ovlogo.png" class="logo">
<ul>
<li>
<a href="">
Home
</li>
<li><a href="">contact</li>
<li><a href="">shop</li>
</ul>
<button type="button" onclick="togglebtn()" id="btn"><span></span></button>
</nav>
<div class="lamp-set">
<img src="lamp.png" class="lamp">
<img src="light.png" class="light">
</div>
<div class="text-container">
<h1>One Stop Shop.</h1>
<p>Get the latest "as seen on" products and appliances that fit you and your everyday needs.We specialize in variety and identifying cunsumer sentiment to maximize the expirence with overviral, your online marketplace. </p>
</div>
<div class="emails">
subscribe for emails
</div>
</div>

You have to remove the "." from the toggle function className.
function togglebtn() {
btn.classList.toggle("active"); // remove the "." from the class name
}

Jquery hide dropdown when mouse leave

I'm creating a navigation bar with dropdown as follows.
Can I make it so when my pointer leave the navbar menu and dropdown, the dropdown get hidden? I tried hover, mouseenter, and mouseleave but since I don't really understand the difference and I'm new in this I got stuck.
Any help appreciated. :)
$(".navbar-menu-each, .submenu-dropdown").hover(function() {
var menuChoice = $(this).val();
var menuPosition = $(this).find("a").position();
var dropdownPosition = menuPosition.left;
switch(menuChoice) {
case 0:
$(".submenu-dropdown").html("<li class='submenu-dropdown-each'>New Employee Registration</li><li class='submenu-dropdown-each submenu-selected'>Employee List</li><li class='submenu-dropdown-each'>Employee Rehire</li><li class='submenu-dropdown-each'>Employee Without Bank Account</li><li class='submenu-dropdown-each'>Employee Without PPh 21</li>");
break;
case 1:
$(".submenu-dropdown").html("<li class='submenu-dropdown-each'>Memo Template</li><li class='submenu-dropdown-each'>Print Memo</li>");
break;
case 2:
$(".submenu-dropdown").html("<li class='submenu-dropdown-each'>Download & Upload</li><li class='submenu-dropdown-each'>Send Email</li>");
break;
case 3:
$(".submenu-dropdown").html("<li class='submenu-dropdown-each'>Employee Data Approvals</li><li class='submenu-dropdown-each'>Employment Status Undo</li>");
break;
case 4:
$(".submenu-dropdown").html("<li class='submenu-dropdown-each'>Employee Data Report</li><li class='submenu-dropdown-each'>Headcount Report</li><li class='submenu-dropdown-each'>Employee Recapitulation Report</li>");
break;
}
var dropdownWidth = $(".submenu-dropdown").width();
var rightEdge = $(document).width();
if ((dropdownPosition + dropdownWidth) >= (rightEdge - 16)) {
var adjustRight = rightEdge - dropdownWidth - 16;
$(".submenu-dropdown").css({"left": adjustRight + "px"});
}
else {
if (dropdownPosition <= 16) {
$(".submenu-dropdown").css({"left": "16px"});
}
else {
$(".submenu-dropdown").css({"left": dropdownPosition + "px"});
}
}
$(".submenu-dropdown").show();
});
$(".navbar-menu-each").click(function() {
$(".navbar-menu-each").removeClass("menu-on");
$(this).addClass("menu-on");
});
.navbar {
display: block;
width: 100%;
position: relative;
margin-bottom: 240px;
}
.navbar-logo-wrapper {
position: absolute;
height: 60px;
width: 100%;
top: 0;
left: 0;
text-align: center;
}
.navbar-logo-wrapper img {
width: 32px;
height: auto;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.navbar-top {
width: 100%;
min-height: 60px;
box-shadow: 0px 1px 8px 0 rgba(0,0,0,0.1);
display: flex;
flex-wrap: wrap;
justify-content: space-between;
padding: 0 24px;
box-sizing: border-box;
}
.navbar-top-left {
}
.burger-btn-wrapper {
display: inline-block;
text-align: center;
margin: 0 16px 0 0;
}
.burger-btn-wrapper i {
font-size: 16px;
color: #333;
line-height: 60px;
transform: translateY(1px);
}
.module-name {
height: 60px;
line-height: 60px;
text-transform: uppercase;
display: inline-block;
font-size: 13px;
font-weight: 700;
color: #333;
}
.navbar-top-right {
}
.navbar-top-middle {
height: 60px;
text-align: center;
position: relative;
line-height: 0;
}
.modules-icon {
vertical-align: middle;
display: inline-block;
width: 60px;
text-align: center;
}
.modules-icon i {
font-size: 16px;
color: #333;
line-height: 60px;
}
.navbar-profile {
display: inline-block;
vertical-align: middle;
line-height: 0;
}
.navbar-profile img {
vertical-align: top;
}
.profpic-wrapper {
display: inline-block;
vertical-align: middle;
width: 60px;
height: 60px;
}
.navbar-profpic {
width: 40px;
height: 40px;
background-color: #00c983;
border-radius: 40px;
position: relative;
margin-left: 10px;
margin-top: 10px;
}
.profile-initial {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
color: #fff;
}
.profile-name {
display: inline-block;
vertical-align: middle;
font-size: 13px;
}
.profile-dropdown {
vertical-align: middle;
display: inline-block;
margin-left: 8px;
}
.navbar-wrapper {
display: inline-block;
width: 100%;
}
.navbar-top-middle img {
height: 32px;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.navbar-menu {
width: 100%;
overflow-x: auto;
overflow-y: hidden;
}
.navbar-menu-list {
width: 750px;
list-style-type: none;
margin: 0;
padding: 15px 0;
cursor: pointer;
margin-left: 0;
}
.navbar-menu-each {
padding-left: 32px;
padding-right: 32px;
display: inline-block;
}
.navbar-menu-each:first-child {
padding-left: 24px;
}
.navbar-menu-each a {
color: #333;
font-size: 13px;
text-decoration: none;
}
.menu-on a {
font-weight: 700;
color: #00c983;
}
.navbar-page-name {
display: block;
font-size: 22px;
height: 60px;
line-height: 60px;
border-top: solid 0.5px #DEF5ED;
border-bottom: solid 0.5px #DEF5ED;
background-color: #F0FBF7;
color: #333;
padding-left: 24px;
}
.navbar-menu::-webkit-scrollbar {
height: 0;
}
.navbar-menu::-webkit-scrollbar-thumb {
background-color: transparent;
}
.submenu-dropdown {
background-color: #fff;
box-shadow: 0px 3px 6px 0 rgba(0,0,0,0.15);
position: absolute;
cursor: pointer;
top: 106px;
}
.submenu-dropdown-each {
display: block;
line-height: 48px;
font-size: 13px;
color: #333;
width: auto;
padding: 0 32px 0 24px;
}
.submenu-dropdown-each:hover {
background: #f8f8f8;
}
.submenu-selected {
font-weight: 700;
color: #00c983;
}
#media (max-width: 575px) {
.module-name {
display: none;
}
.profile-name {
display: none;
}
.modules-icon {
display: none;
}
}
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.11/css/all.css" integrity="sha384-p2jx59pefphTFIpeqCcISO9MdVfIm4pNnsL08A6v5vaQc4owkQqxMV8kg4Yvhaw/" crossorigin="anonymous">
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,400i,700,700i" rel="stylesheet">
<div class="navbar">
<div class="navbar-logo-wrapper">
<img class="navbar-tree" src="https://cdn.frontify.com/api/screen/thumbnail/7UV_lfX5OBfHxFn5lc3ygK8UTU3z5pivwY9QDSDIOiFemj-DdmDzmwiPvbibaG63IMXz-MmGOs4aH-UqgoT9gw/350">
</div>
<div class="navbar-top">
<div class="navbar-top-left">
<div class="burger-btn-wrapper">
<i class="fas fa-bars"></i>
</div>
<div class="module-name">Employee</div>
</div>
<div class="navbar-top-right">
<div class="modules-icon"><i class="fas fa-th"></i></div>
<div class="navbar-profile">
<div class="profpic-wrapper">
<div class="navbar-profpic">
<div class="profile-initial">DJ</div>
</div>
</div>
<div class="profile-name">Dennis Jonathan</div>
<div class="profile-dropdown"><i class="fas fa-chevron-down"></i></div>
</div>
</div>
</div>
<div class="navbar-menu">
<ul class="navbar-menu-list">
<li class="navbar-menu-each menu-on" value=0>Employee Directory</li>
<li class="navbar-menu-each" value=1>Memo</li>
<li class="navbar-menu-each" value=2>Bulk Update</li>
<li class="navbar-menu-each" value=3>Approvals and Undo</li>
<li class="navbar-menu-each" value=4>Report</li>
</ul>
</div>
<div class="navbar-page-name">
Employee List
</div>
</div>
<ul class="submenu-dropdown">
</ul>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

It seems to me you are overcomplicating a simple process.
hover functionality can quite easily be replicated using only CSS.
.navbar-menu-list {
width: 750px;
list-style-type: none;
margin: 0;
padding: 15px 0;
cursor: pointer;
margin-left: 0;
}
.navbar-menu-each {
padding-left: 32px;
padding-right: 32px;
display: inline-block;
position:relative;
}
.navbar-menu-each a {
color: #333;
font-size: 13px;
text-decoration: none;
}
.navbar-menu-each:hover a {
font-weight: 700;
color: #00c983;
}
.navbar-page-name {
display: block;
font-size: 22px;
height: 60px;
line-height: 60px;
border-top: solid 0.5px #DEF5ED;
border-bottom: solid 0.5px #DEF5ED;
background-color: #F0FBF7;
color: #333;
padding-left: 24px;
}
.submenu-dropdown {
display: none;
background-color: #fff;
box-shadow: 0px 3px 6px 0 rgba(0, 0, 0, 0.15);
position: absolute;
cursor: pointer;
top: 20px;
left:0;
}
.navbar-menu-each:hover > .submenu-dropdown,
.submenu-dropdown:hover{
display: block;
}
.submenu-dropdown-each {
display: block;
line-height: 48px;
font-size: 13px;
color: #333;
width: auto;
padding: 0 32px 0 24px;
}
.submenu-dropdown-each:hover {
background: #f8f8f8;
}
.submenu-selected {
font-weight: 700;
color: #00c983;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.11/css/all.css" integrity="sha384-p2jx59pefphTFIpeqCcISO9MdVfIm4pNnsL08A6v5vaQc4owkQqxMV8kg4Yvhaw/" crossorigin="anonymous">
<link href="https://fonts.googleapis.com/css?family=Open+Sans:400,400i,700,700i" rel="stylesheet">
<div class="navbar-menu">
<ul class="navbar-menu-list">
<li class="navbar-menu-each">
Employee Directory
<ul class="submenu-dropdown">
<li class='submenu-dropdown-each'>New Employee Registration</li>
<li class='submenu-dropdown-each submenu-selected'>Employee List</li>
<li class='submenu-dropdown-each'>Employee Rehire</li>
<li class='submenu-dropdown-each'>Employee Without Bank Account</li>
<li class='submenu-dropdown-each'>Employee Without PPh 21</li>
</ul>
</li>
<li class="navbar-menu-each">
Memo
<ul class="submenu-dropdown">
<li class='submenu-dropdown-each'>Memo Template</li>
<li class='submenu-dropdown-each'>Print Memo</li>
</ul>
</li>
<li class="navbar-menu-each">Bulk Update
<ul class="submenu-dropdown">
<li class='submenu-dropdown-each'>Download & Upload</li>
<li class='submenu-dropdown-each'>Send Email</li>
</ul>
</li>
<li class="navbar-menu-each">
Approvals and Undo
<ul class="submenu-dropdown">
<li class='submenu-dropdown-each'>Employee Data Approvals</li>
<li class='submenu-dropdown-each'>Employment Status Undo</li>
</ul>
</li>
<li class="navbar-menu-each">
Report
<ul class="submenu-dropdown">
<li class='submenu-dropdown-each'>Employee Data Report</li>
<li class='submenu-dropdown-each'>Headcount Report</li>
<li class='submenu-dropdown-each'>Employee Recapitulation Report</li>
</ul>
</li>
</ul>
</div>

HTML/CSS hover affecting parent element +Jquery

I am testing my navigation bar for a project and I am using basic Html/css
and i have added Jquery so that the hover effect could affect the parent element.
$(document).ready(function () {
$(".nav-level-2").hover(
function () {
$("li>a").css("background", "white");
}
);
$(".nav-level-2").mouseleave(
function () {
$("li>a").css("background", "none");
});
});
.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;
}
.row{
display: flex;
flex: 0 1 auto;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
flex-direction: row;
}
.list-container {
padding: 0px;
}
.col-lg-2{
flex-basis: 16.666666667%;
max-width: 16.666666667%;
box-sizing: border-box;
display: flex;
flex: 0 1 auto;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
flex-direction: column;
-webkit-box-flex: 0;
background: red;
margin-left: 5px;
}
.main-nav>.inner .nav-level-2 .nav-level-2-container .heading {
text-transform: uppercase;
color: #000;
letter-spacing: 1px;
margin-bottom: 20px;
font-size: 14px;
margin: 0 0 20px;
}
<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 class="list-container shop col-lg-2">
<h3 class="heading"> Shop by</h3>
</div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>
What I am trying to achieve is when I hover over the red block,I am trying to make parent element ('What's New') to show with color #000 and background white;
SEE THIS IMAGE <--
I know that when i hover 'What's New' it does change color to white, but when I hover over redblock for navigation, the background disappears with 'What's New' disappearing with black background.

No need for JavaScript to do what you want. I think this is what you are looking for? Basically, I am using the :hover on the parent div to change the child element's background and colour.
.nav-whats-new:hover a {
background:white;
color:black;
}
Example:
.main-nav {
background: #000;
height: 30px;
position: relative;
overflow: visible;
z-index: 2;
width: 100%;
left: 0;
cursor: default;
}
.nav-whats-new:hover a {
background:white;
color:black;
}
.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;
}
.row{
display: flex;
flex: 0 1 auto;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
flex-direction: row;
}
.list-container {
padding: 0px;
}
.col-lg-2{
flex-basis: 16.666666667%;
max-width: 16.666666667%;
box-sizing: border-box;
display: flex;
flex: 0 1 auto;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
flex-direction: column;
-webkit-box-flex: 0;
background: red;
margin-left: 5px;
}
.main-nav>.inner .nav-level-2 .nav-level-2-container .heading {
text-transform: uppercase;
color: #000;
letter-spacing: 1px;
margin-bottom: 20px;
font-size: 14px;
margin: 0 0 20px;
}
<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 class="list-container shop col-lg-2">
<h3 class="heading"> Shop by</h3>
</div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>

See the edited jQuery. It's what I changed. Change background none to transparent and add the color css styles.
Is this what you wanted?
$(document).ready(function () {
$(".nav-level-2").hover(
function () {
$("li>a").css("background", "white");
$("li>a").css("color", "black");
}
);
$(".nav-level-2").mouseleave(
function () {
$("li>a").css("background", "transparent");
$("li>a").css("color", "white");
}
);
});
.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;
}
.row{
display: flex;
flex: 0 1 auto;
-webkit-box-orient: horizontal;
-webkit-box-direction: normal;
flex-direction: row;
}
.list-container {
padding: 0px;
}
.col-lg-2{
flex-basis: 16.666666667%;
max-width: 16.666666667%;
box-sizing: border-box;
display: flex;
flex: 0 1 auto;
-webkit-box-orient: vertical;
-webkit-box-direction: normal;
flex-direction: column;
-webkit-box-flex: 0;
background: red;
margin-left: 5px;
}
.main-nav>.inner .nav-level-2 .nav-level-2-container .heading {
text-transform: uppercase;
color: #000;
letter-spacing: 1px;
margin-bottom: 20px;
font-size: 14px;
margin: 0 0 20px;
}
<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 class="list-container shop col-lg-2">
<h3 class="heading"> Shop by</h3>
</div>
</div>
</div>
</li>
</ul>
</div>
</div>
</nav>

jQuery animations work on one element and not another

I've been working on a mockup for an app store, and now that I've built the basic framework I wanted to start using jQuery to make certain things interactive. However, none of the jQuery actions I try will work. What's odd is that if I delete all my code, and then try to run a jQuery action with just one div, then it works. Also, if it helps, I am using the Brackets editor.
My code is below. The blue box is the div I animated before all the other code and the green box is the div I animated after the rest of the code. On my end only the blue div hides on click while the green div does nothing.
What's going wrong?
$(document).ready(function() {
$(".scroll-menu").click(function() {
$(".scroll-menu").hide();
});
$(".box").click(function() {
$(".box").hide();
});
});
.box {
z-index: -1;
margin-top: 20em;
position: relative;
width: 10em;
height: 20em;
background: green;
left: 20em
}
.scroll-menu {
background: blue;
height: 300px;
width: 500px;
margin: auto;
}
nav {
position: absolute;
height: 100%;
width: 16em;
left: 0;
top: 0;
background: #f5f5f5;
border-right: .1em solid grey
}
.mini-menu {
position: relative;
background: #E3E0E6;
top: 5em;
height: 32em
}
.top-menu {
position: relative;
top: 5em;
list-style-type: none;
margin-left: -1em;
}
.top-menu li {
position: relative;
padding-top: .2em;
padding-bottom: .2em;
font-size: 1.1em;
font-family: droid-sans;
font-weight: ;
border-radius: .5em;
margin-right: .5em;
margin-top: .5em;
margin-left: -.5em;
padding-left: 1em;
}
.top-menu li:hover {
background: #725490;
}
.top-menu li a {
text-decoration: none;
color: #000000
}
.top-menu li:hover a {
color: white;
}
.mini-menu ul li {
position: relative;
padding-top: .2em;
padding-bottom: .2em;
font-size: 1em;
font-family: droid-sans;
font-weight: ;
border-radius: .5em;
margin-right: .5em;
margin-top: .5em;
margin-left: -.5em;
padding-left: 1em;
}
.mini-menu ul {
position: relative;
top: .9em;
list-style-type: none;
margin-left: -1em;
}
.mini-menu ul li a {
text-decoration: none;
color: rgb(109, 52, 150);
}
.mini-menu a:hover {
color: #ab6bb1
}
.header {
position: absolute;
height: 5em;
width: 100%;
left: 0;
top: 0;
background: white;
z-index: 1;
border-bottom: .12em solid grey
}
.logo {
position: relative;
width: 10em;
height: auto;
left: 2em;
top: 2em
}
.app {
positio: relative;
margin-left: 8.8em;
margin-top: -.1em;
font-family: antic, ;
font-size: 1.4em
}
.search {
position: relative;
left: 12em;
top: -2em;
width: 15em;
border: .06em solid grey;
font-family: antic, ;
font-size: 1.9em;
padding-left: .5em
}
form i {
position: relative;
left: 11.5em;
top: -1.9em;
color: purple;
cursor: pointer;
}
.icon-open {
position: absolute;
top: 5em;
cursor: pointer;
z-index: 4;
left: 19em
}
.icon-open i {
cursor: pointer
}
{
position: relative;
background: green;
height 30em;
width: 6em;
top: 30em;
left: 50em;
border: solid;
z-index: 20;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="box"></div>
<div class="scroll-menu"></div>
<nav>
<ul class="top-menu">
<li> Home</li>
<li> Popular</li>
<li>Trending</li>
<li>Collections</li>
</ul>
<div class="mini-menu">
<ul>
<li>Diagnosis & Staging</li>
<li>Image Review</li>
<li>Rx & Protocols</li>
<li>Planning</li>
<li>Chart Checks & Reviews</li>
<li>Calibration</li>
<li>Policy & Procedure</li>
<li>Certifications</li>
<li>Connected Clinical</li>
<li>Messaging</li>
<li>Utilities</li>
<li>Interfaces</li>
<li>Acounting & Finance</li>
<li>Clinical Analytics</li>
</ul>
</div>
</nav>
<div class="header">
<img src="MedLever-Logo-HighRes.png" class="logo">
<p class="app">App Store</p>
<form>
<input type="text" autocomplete="on" name="search" class="search">
<i class="fa fa-search fa-2x"></i>
</form>
</div>
<div class="icon-open">
<i class="fa fa-bars"></i>
</div>

You've given the .box element a z-index of -1. This places the element behind the <body> tag and makes it unable to be clicked.
The purpose of the z-index is not apparent, so I've removed it in my example, below, and both boxes are successfully hidden on click.
$(document).ready(function() {
$(".scroll-menu").click(function() {
$(".scroll-menu").hide();
});
$(".box").click(function() {
$(".box").hide();
});
});
.box {
margin-top: 20em;
position: relative;
width: 10em;
height: 20em;
background: green;
left: 20em
}
.scroll-menu {
background: blue;
height: 300px;
width: 500px;
margin: auto;
}
nav {
position: absolute;
height: 100%;
width: 16em;
left: 0;
top: 0;
background: #f5f5f5;
border-right: .1em solid grey
}
.mini-menu {
position: relative;
background: #E3E0E6;
top: 5em;
height: 32em
}
.top-menu {
position: relative;
top: 5em;
list-style-type: none;
margin-left: -1em;
}
.top-menu li {
position: relative;
padding-top: .2em;
padding-bottom: .2em;
font-size: 1.1em;
font-family: droid-sans;
font-weight: ;
border-radius: .5em;
margin-right: .5em;
margin-top: .5em;
margin-left: -.5em;
padding-left: 1em;
}
.top-menu li:hover {
background: #725490;
}
.top-menu li a {
text-decoration: none;
color: #000000
}
.top-menu li:hover a {
color: white;
}
.mini-menu ul li {
position: relative;
padding-top: .2em;
padding-bottom: .2em;
font-size: 1em;
font-family: droid-sans;
font-weight: ;
border-radius: .5em;
margin-right: .5em;
margin-top: .5em;
margin-left: -.5em;
padding-left: 1em;
}
.mini-menu ul {
position: relative;
top: .9em;
list-style-type: none;
margin-left: -1em;
}
.mini-menu ul li a {
text-decoration: none;
color: rgb(109, 52, 150);
}
.mini-menu a:hover {
color: #ab6bb1
}
.header {
position: absolute;
height: 5em;
width: 100%;
left: 0;
top: 0;
background: white;
z-index: 1;
border-bottom: .12em solid grey
}
.logo {
position: relative;
width: 10em;
height: auto;
left: 2em;
top: 2em
}
.app {
positio: relative;
margin-left: 8.8em;
margin-top: -.1em;
font-family: antic, ;
font-size: 1.4em
}
.search {
position: relative;
left: 12em;
top: -2em;
width: 15em;
border: .06em solid grey;
font-family: antic, ;
font-size: 1.9em;
padding-left: .5em
}
form i {
position: relative;
left: 11.5em;
top: -1.9em;
color: purple;
cursor: pointer;
}
.icon-open {
position: absolute;
top: 5em;
cursor: pointer;
z-index: 4;
left: 19em
}
.icon-open i {
cursor: pointer
}
{
position: relative;
background: green;
height 30em;
width: 6em;
top: 30em;
left: 50em;
border: solid;
z-index: 20;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="box"></div>
<div class="scroll-menu"></div>
<nav>
<ul class="top-menu">
<li> Home</li>
<li> Popular</li>
<li>Trending</li>
<li>Collections</li>
</ul>
<div class="mini-menu">
<ul>
<li>Diagnosis & Staging</li>
<li>Image Review</li>
<li>Rx & Protocols</li>
<li>Planning</li>
<li>Chart Checks & Reviews</li>
<li>Calibration</li>
<li>Policy & Procedure</li>
<li>Certifications</li>
<li>Connected Clinical</li>
<li>Messaging</li>
<li>Utilities</li>
<li>Interfaces</li>
<li>Acounting & Finance</li>
<li>Clinical Analytics</li>
</ul>
</div>
</nav>
<div class="header">
<img src="MedLever-Logo-HighRes.png" class="logo">
<p class="app">App Store</p>
<form>
<input type="text" autocomplete="on" name="search" class="search">
<i class="fa fa-search fa-2x"></i>
</form>
</div>
<div class="icon-open">
<i class="fa fa-bars"></i>
</div>
Below is a demonstration of an element being placed behind the <body>. I've given the <body> a white background with an opacity of 0.9. Notice that the second green box has a white overlay because it's been placed behind the <body> with z-index:-1. Also notice that the first box can be clicked, but the second cannot.
html,body {
background-color:rgba(255,255,255,.9)
}
.box {
position:relative;
width: 10em;
height: 20em;
background: green;
display:inline-block;
}
.behind {
z-index:-1;
}
CLICK
CAN'T CLICK

Why is nav bar sliding down skinny and then widening?

When you hover over a nav li item on my website, it should slide down the nav ul ul item, but when it slides down for some reason it is skinny, then widens after. Please look at my JSFiddle and help me out :D
JSFiddle Demo
HTML:
<body>
<header>
<nav>
<ul>
<li>Home
<ul>
<li>About Me</li>
</ul>
</li>
<li>Purposeful Living
<ul>
<li>7th - 8th</li>
<li>9th - 10th</li>
<li>11th - 12th</li>
</ul>
</li>
<li>Academic Excellence
<ul>
<li>7th - 8th</li>
<li>9th - 10th</li>
<li>11th - 12th</li>
</ul>
</li>
<li>Ethical Responsibility
<ul>
<li>7th - 8th</li>
<li>9th - 10th</li>
<li>11th - 12th</li>
</ul>
</li>
</ul>
</nav>
</header>
<div id="headershow">Toggle Nav Bar</div>
<div id="mainnamesection">
<h1 id="mainname">
Title
</h1>
<div id="flyingsection">
</div>
<h1 id="mainname1">
<span id="smallname">Subtitle</span>
</h1>
</div>
</body>
Javascript/Jquery:
$(document).ready(function() {
$("#smallname").click(function() {
$("html, body").animate({scrollTop: "0px"});
});
$("#headershow").click(function() {
$("header").slideToggle();
});
$(".grades td a").mouseover(function() {
$(this).animate({backgroundColor: "white", color: "black"}, 200);
$(this).mouseleave(function() {
$(this).animate({backgroundColor: "transparent", color: "white"}, 200);
});
});
$('nav li').hover(
function () {
$('ul', this).slideDown();
},
function () {
$('ul', this).stop().slideUp();
}
);
});
CSS:
` #import url(http://fonts.googleapis.com/css?family=Open+Sans);
body {
background-image: url(file:///Users/jakesager/Desktop/Websites/Jake%20Sager/img/starrynight.jpg);
background-size: 110%;
background-position: center -100px;
background-attachment: fixed;
margin:0;
padding:0;
}
header {
width: 100%;
margin:auto;
background: rgba(255,255,255,0.7);
height: 60px;
z-index: 20;
display: none;
}
.inline {
display: inline-block;
}
#flyingbird {
height: 60px;
width: 90px;
left: 100px;
position: relative;
top: -30px;
}
#bird {
height: 60px;
width: 90px;
display: inline-block;
position: relative;
top: 15px;
z-index: 1;
}
#flyingsection {
width: 700px;
margin:auto;
margin-top: 0px;
margin-bottom: 0px;
}
nav {
height: 60px;
margin-top: 0px;
text-align: center;
z-index: 20;
}
nav ul ul {
display:none;
}
#headershow {
background-color: rgba(255,255,255,0.7);
position: static;
left: 0;
top: 0;
width: 125px;
text-align:center;
border-bottom-right-radius: 10px;
padding: 5px;
height: 20px;
cursor: pointer;
font-family: open sans;
}
nav ul {
list-style:none;
display: inline-table;
position:relative;
padding: 0;
font-family: open sans;
display: inline-block;
}
nav ul li {
float: left;
margin-top: -16px;
border-right: 2px solid black;
text-align:center;
height: 60px;
padding-left: 25px;
padding-right: 25px;
}
nav ul li:last-child {
border-right: none;
}
nav ul li a {
color:black;
text-decoration: none;
padding-top: 15px;
padding-bottom: 15px;
padding-left: 5px;
padding-right: 5px;
position: relative;
top: 18px;
}
nav ul li:first-child {
border-left: 2px solid black;
}
nav ul li:last-child {
border-right: 2px solid black;
}
nav ul li:hover {
background: rgba(255,255,255,0.6)
}
nav ul ul {
position: absolute;
top: 100%;
z-index: 20;
}
nav ul ul li {
float:none;
background-color: rgba(255,255,255,0.82);
width: 100%;
margin-top: 0;
margin-left: -27px;
border-left: 2px solid black;
border-right: 2px solid black;
border-top: 1px solid black;
}
nav ul ul li:last-child {
border-bottom: 2px solid black;
}
nav ul ul li:hover {
background-color: rgba(255,255,255,0.9);
}
#mainnamesection {
width: 1050px;
margin:auto;
}
#mainname {
font-size: 180px;
font-family: open sans;
text-align:center;
margin-top: 20px;
color: white;
}
#mainname1 {
font-size: 180px;
font-family: open sans;
text-align:center;
color: white;
margin-top: -100px;
}
#smallname {
font-size: 50px;
font-family: open sans;
color: #47BCEA;
}
nav ul ul {
margin-left: 0;
}
.maincontent {
width: 100%;
margin-top: 30px;
padding-top: 7px;
padding-bottom: 10px;
color: white;
}
.maincontent p {
font-family: open sans;
margin-left: 20px;
font-size: 18px;
}
.maincontent h1 {
font-family: open sans;
margin-left: 20px;
}
.grades {
margin-left: 20px;
background-color: rgba(000,000,000, 0.7);
font-family: open sans;
font-size: 23px;
}
.grades td {
padding: 10px;
border-right: 2px solid white;
}
.grades td:last-child {
border: none;
}
.grades td a {
width: 100%;
color: white;
text-decoration: none;
padding: 5px;
}
.wrapper {
width: 941px;
margin:auto;
}
.maintitle {
font-family: Open sans;
margin-left: 20px;
}
.mainparagraph {
font-family: Open sans;
margin-left: 20px;
}

During the animation overflow is set to hidden. When animation completes the inline overflow style is removed.
You have negative margin set on sub menu <li> so while the animation is in progress the part that is outside the parent is not visible.
Suggest you remove the negative margin and set the <ul> to left:0