How to create dropdown under a dropdown menu - javascript

I want to have a dropdown menu that can keep dropping down but instead of going down, dropping to the right like this pic
I know how to create a dropdown menu that goes below only like this pic
My current HTML code :
<div class="nav navbar-fixed-top">
<ul>
<li class="home">Home</li>
<li class="tutorials">Consumer Management
<ul>
<li class="tuto2">www.e-homes.com.my</li>
<ul>
<li>hehe</li>
</ul>
</ul>
</li>
My current CSS style :
.nav li {
font-size: 1.2em;
text-align: left;
width: 220px;
line-height: 60px;
font-size: 1.4em;
display: inline-block;
margin-right: -7px;
}
.nav a {
text-decoration: none;
color: #fff;
display: block;
padding-left: 15px;
transition: .3s background-color;
}
.nav a:hover {
background-color: #005f5f;
}
.nav li li {
font-size: .8em;
}
#media screen and (min-width: 650px) {
.nav > ul > li {
text-align: center;
}
.nav > ul > li > a {
padding-left: 0;
}
.nav li ul {
position: absolute;
display: none;
width: inherit;
}
.nav li:hover ul {
display: block;
}
.nav li ul li {
display: block;
}
}
Does anyone know the CCS style to enable it going to the right?


You can simply do it like this:
.outer {display: inline-flex; flex-direction: column}
.tutorials > ul, .tuto2 > ul {display: none}
.tutorials:hover > ul, .tuto2:hover > ul {display: inline-block}
<ul class="outer">
<li class="home">Home</li>
<li class="tutorials">Consumer Management
<ul>
<li class="tuto2">www.e-homes.com.my
<ul>
<li>hehe</li>
</ul>
</li>
</ul>
</li>
</ul>


I hope the below helps.
* {
box-sizing: border-box;
}
ul {
margin: 0;
padding: 0;
list-style: none;
}
li {
padding: 1rem;
position: relative;
max-width: 200px;
width: 200px;
}
li:not(:last-child) {
border-bottom: thin solid white;
}
li>a {
color: white;
}
.main>li {
background-color: blue;
}
.sub>li {
background-color: red;
}
.subsub>li {
background-color: green;
}
.sub,
.subsub {
display: none;
}
.main>li:hover>.sub,
.sub>li:hover>.subsub {
display: inline-block;
position: absolute;
top: 0;
right: -200px;
}
<div class="nav">
<ul class="main">
<li class="home">Home</li>
<li class="tutorials">Consumer Management
<ul class="sub">
<li class="tuto2">www.e-homes.com.my
<ul class="subsub">
<li>hehe</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>


html code
<div class="container">
<h2>Multi-Level Dropdowns</h2>
<p>In this example, we have created a .dropdown-submenu class for multi-level dropdowns (see style section above).</p>
<p>Note that we have added jQuery to open the multi-level dropdown on click (see script section below).</p>
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" data-toggle="dropdown">Tutorials
<span class="caret"></span></button>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">HTML</a></li>
<li><a tabindex="-1" href="#">CSS</a></li>
<li class="dropdown-submenu">
<a class="test" tabindex="-1" href="#">New dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a tabindex="-1" href="#">2nd level dropdown</a></li>
<li><a tabindex="-1" href="#">2nd level dropdown</a></li>
<li class="dropdown-submenu">
<a class="test" href="#">Another dropdown <span class="caret"></span></a>
<ul class="dropdown-menu">
<li>3rd level dropdown</li>
<li>3rd level dropdown</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
css code
.dropdown-submenu {
position: relative;
}
.dropdown-submenu .dropdown-menu {
top: 0;
left: 100%;
margin-top: -1px;
}
jquery
$(document).ready(function(){
$('.dropdown-submenu a.test').on("click", function(e){
$(this).next('ul').toggle();
e.stopPropagation();
e.preventDefault();
});
});
if you have doubt for creatring drop down link you may Refer this link https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_ref_js_dropdown_multilevel_css&stacked=h

Related

Menu does not close

I am creating a menu that supposed to be web accessible with 508 compliance. The problem is when I get to the last menu item the menu does not close while the keyboard TAB button.
Another problem is I need to be able find a way to close the menu when clicking on the ESC key
The sample is here: jsfiddle.net/dvLden/Ltz7nmdb/1/

The only thing you need to change:
/* CSS */
.navbar > .navbar-item:hover > .navbar-sub,
.navbar > .navbar-item a:focus ~ .navbar-sub {
display: block;
}
Here is the full working code (without jQuery):
/* CSS */
body {
margin: 10px;
}
.navbar,
.navbar .navbar-sub {
list-style: none;
margin: 0;
padding: 0;
}
.navbar > .navbar-item {
float: left;
}
.navbar > .navbar-item:last-child {
margin-right: 0;
}
.navbar > .navbar-item a {
text-decoration: none;
}
.navbar > .navbar-item > a {
background-color: #999;
padding: 10px 20px;
color: #696969;
display: block;
}
.navbar > .navbar-item > a:hover,
.navbar > .navbar-item > a:focus,
.navbar > .navbar-item.active > a {
background-color: #ccc;
}
.navbar .navbar-sub {
display: none;
}
.navbar .navbar-sub > .navbar-sub-item > a {
color: #ccc;
display: block;
padding: 5px 10px;
text-align: center;
background-color: #696969;
}
.navbar .navbar-item.active .navbar-sub-item > a:hover,
.navbar .navbar-item.active .navbar-sub-item > a:focus {
background-color: #999;
}
/* That keep it open when "hover" and "focus" */
.navbar > .navbar-item:hover > .navbar-sub,
.navbar > .navbar-item a:focus ~ .navbar-sub {
display: block;
}
<!-- HTML -->
<ul class="navbar">
<li class="navbar-item">
Parent Link
<ul class="navbar-sub">
<li class="navbar-sub-item">
One
</li>
<li class="navbar-sub-item">
Two
</li>
<li class="navbar-sub-item">
Three
</li>
</ul>
</li>
<li class="navbar-item">
Parent Link
<ul class="navbar-sub">
<li class="navbar-sub-item">
One
</li>
<li class="navbar-sub-item">
Two
</li>
<li class="navbar-sub-item">
Three
</li>
</ul>
</li>
<li class="navbar-item">
Parent Link
<ul class="navbar-sub">
<li class="navbar-sub-item">
One
</li>
<li class="navbar-sub-item">
Two
</li>
<li class="navbar-sub-item">
Three
</li>
</ul>
</li>
<li class="navbar-item">
Parent Link
<ul class="navbar-sub">
<li class="navbar-sub-item">
One
</li>
<li class="navbar-sub-item">
Two
</li>
<li class="navbar-sub-item">
Three
</li>
</ul>
</li>
</ul>

Nav: Extra spacing on nested ul element (But why?)

So I have a navigation.
NOTE: PLEASE LOOK AT THE FULL PAGE FIDDLE SNIPPET (NOT THE SMALLER SCREEN)
Problem: In the second nested ul (dropdown sub menu) with a positioning: absolute, the ul element doesn't align with the parent ul, upon checking inspect element, it turns out there is a right 20px:
Attempt: Weirdly this extra space is only in the first li nested ul i.e. Service -> Commercial, not the other parent li i.e. blog -> about (is aligned!)
IDEAS?
HERE IS A PHOTO: https://imgur.com/a/7avUG
/* NAVIGATION ON CLICK */
// Primary menu drop down (mobile)
$( ".dropdown-toggle" ).click(function() {
$(this).parent().find(".sub-menu:first" ).toggleClass("toggle-on");
});
/* NAVIGATION ON HOVER */
// Sub menu drop down
$(".main-navigation ul li.menu-item-has-children").hover(function() {
$(this).find(".sub-menu:first").toggleClass("toggle-on");
});
$(".primary-toggle").click(function() {
$(" .main-navigation ul:first").toggleClass("toggle-on");
});
// $(".main-navigation li.menu-item-has-children").mouseleave(function() {
// $(".sub-menu").removeClass("toggle-on");
// });
/*
# HEADER
*/
*, html {
margin: 0;
font-size: 22px;
}
.site-header {
background-color: black;
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem;
}
/* Burger Nav Styling */
#sidebar-btn {
vertical-align: middle;
width: 40px;
height: 25px;
cursor: pointer;
margin:10px;
position: relative;
top: 4px;
}
#sidebar-btn span {
height: 2px;
background: black;
margin-bottom: 5px;
display: block;
}
#sidebar-btn span:nth-child(2) {
width: 75%;
}
#sidebar-btn span:nth-child(3) {
width: 50%;
}
/* Main Menu */
.main-navigation {
}
/*.main-navigation .menu {
display: none;
padding: 1rem;
} */
.menu-test-container {
position: absolute;
top: 90px;
left: 0;
width: 100%;
}
.main-navigation .menu.toggle-on {
display: block;
}
.main-navigation ul li {
min-width: 140px;
margin-right: 30px
}
.main-navigation ul {
display: none;
padding: 0 1rem;
position: relative;
background-color: yellow;
}
.main-navigation ul li a {
color: #fff;
text-decoration: none;
}
/* SUB Menu styles */
.sub-menu.toggle-on {
display: block;
}
.main-navigation ul, .main-navigation ul ul, .main-navigation ul ul ul {
list-style: none;
display: none;
}
/* Positioning x y of EACH sub menus */
.main-navigation ul ul {
background-color: pink;
}
.main-navigation ul ul ul {
left: 150px;
top: 0;
background-color: blue;
}
.main-navigation ul ul ul ul {
background-color: green;
top: 20px;
left: 0;
}
.main-navigation ul ul ul ul ul {
background-color: black;
top:0px;
left: 200px;
}
.main-navigation ul ul ul ul ul ul {
background-color: silver;
top:0px;
left: 200px;
}
#media only screen and (min-width: 468px) {
.site-header {
flex-direction: column;
}
/* Main Navigation - Getting rid of navburger */
#sidebar-btn {
display: none;
}
.primary-toggle {
display: none;
}
.main-navigation .menu.toggle-on {
display: flex;
background-color: blue;
}
.main-navigation ul {
display: flex;
align-items: center;
flex-direction: row;
justify-content: space-between;
background-color: blue;
}
.menu-test-container {
display: block;
position: relative;
top: 0;
} /* end of */
}
/* TABLET MENU */
#media only screen and (min-width: 768px) {
.site-header {
flex-direction: row;
}
body {
background-color: yellow;
}
/* Main Navigation - Getting rid of navburger */
#sidebar-btn {
display: none;
}
.primary-toggle {
display: none;
}
.main-navigation .menu.toggle-on {
display: flex;
background-color: blue;
}
.main-navigation ul {
display: flex;
align-items: center;
flex-direction: row;
justify-content: space-between;
background-color: blue;
}
.menu-test-container {
display: block;
position: relative;
top: 0;
} /* end of */
/* Sub menu navigation tablet */
/* Positioning x y of EACH sub menus */
.main-navigation ul ul {
position: absolute;
background-color: pink;
padding: 20px 10px;
}
.main-navigation ul ul li {
padding: 7px 1px;
}
.main-navigation ul ul li a {
font-size: 90%;
}
.main-navigation ul ul ul {
left: 0px;
top: 0;
background-color: blue;
}
.main-navigation ul ul ul ul {
background-color: green;
top: 20px;
left: 0;
}
.main-navigation ul ul ul ul ul {
background-color: black;
top:0px;
left: 200px;
}
.main-navigation ul ul ul ul ul ul {
background-color: silver;
top:0px;
left: 200px;
}
}
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://use.fontawesome.com/c083bcc66d.js"></script>
</head>
<body>
<header id="masthead" class="site-header">
<div class="site-branding">
<div class="site-branding-text">
<p class="site-title">LOGO</p>
</div>
</div><!-- .site-branding -->
<nav id="site-navigation" class="main-navigation">
<button class="primary-toggle" aria-expanded="false">
<div id="sidebar-btn">
<span></span>
<span></span>
<span></span>
</div>
</button>
<div class="menu-test-container">
<ul id="primary-menu" class="menu" aria-expanded="true">
<li id="menu-item-2035" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2035">
Services
<span class="dropdown-toggle" aria-expanded="false">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2076" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2076">
Commercial
<span class="dropdown-toggle toggled-on" aria-expanded="true">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2082" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2082">
Rural
<span class="dropdown-toggle toggled-on" aria-expanded="true">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2081" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2081">
Electrical
<span class="dropdown-toggle" aria-expanded="false">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2079" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2079">
Residential
<span class="dropdown-toggle" aria-expanded="false">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2083" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2083">News Updates</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li> asdasd</li>
<li> asdasd</li>
<li> asdasd</li>
</ul>
</li>
<li id="menu-item-2084" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2084">
Projects
</li>
<li id="menu-item-2045" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2045">
Blog
<span class="dropdown-toggle" aria-expanded="false">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2078" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-2078">
About
<span class="dropdown-toggle" aria-expanded="false">
<span class="dropdown-symbol"><i class="fa fa-caret-down" aria-hidden="true"></i></span>
</span>
<ul class="sub-menu">
<li id="menu-item-2099" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-2099">
News Updates
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</nav><!-- #site-navigation -->
<link rel="stylesheet" type="text/css" href="style.css">
</header>
<script
src="https://code.jquery.com/jquery-3.2.1.min.js"
integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
crossorigin="anonymous"></script>
<script src="script.js"></script>
</body>
</html>

The Dropdown Menu is perfectly aligned with the a
The padding: 0 1rem; of the <ul id="primary-menu" class="menu" aria-expanded="true"> is the reason for the "false" alignment
Instead of giving the primary-menu an padding you should add a padding to the a

change this:
.main-navigation ul, .main-navigation ul ul, .main-navigation ul ul ul {
list-style: none;
display: none;
}
to this:
.main-navigation ul, .main-navigation ul ul, .main-navigation ul ul ul {
list-style: none;
display: none;
margin-left:0;
padding-left:0;
}
Did that help?

Position absolute dropdown in scrollable container

Is it possible to make the position absolute dropdown stay on top of the scrollable container, and move along with the position relative parent when scrolling? Right now, the dropdown appears within the scrollable area.
The screenshot below is what I want to achieve. I'm also open to javascript solutions if needed.
jsFiddle
.navbar {
padding-left: 0;
white-space: nowrap;
overflow: auto;
}
.navbar-item {
position: relative;
margin-left: 0;
list-style: none;
display: inline-block;
width: 200px;
text-align: center;
border: 1px solid;
}
.dropdown {
position: absolute;
padding-left: 0;
width: 200px;
box-shadow: 0 1px 0 1px black;
display: none;
}
.dropdown-item {
margin-left: 0;
list-style: none;
}
.navbar-item:hover .dropdown {
display: block;
}
<ul class="navbar">
<li class="navbar-item">
<a>Item A</a>
<ul class="dropdown">
<li class="dropdown-item">Sub Item A</li>
<li class="dropdown-item">Sub Item B</li>
<li class="dropdown-item">Sub Item C</li>
</ul>
</li>
<li class="navbar-item"><a>Item B</a></li>
<li class="navbar-item"><a>Item C</a></li>
<li class="navbar-item"><a>Item D</a></li>
<li class="navbar-item"><a>Item E</a></li>
</ul>

An easy way is to make the position of dropdown fixed, but make sure to apply the left and top values accordingly. Another way is to append the dropdown menu outside the ul element, so when it appears it will not be wrapped within it.
.dropdown {
position: fixed;
}
.navbar {
padding-left: 0;
white-space: nowrap;
overflow: auto;
}
.navbar-item {
position: relative;
margin-left: 0;
list-style: none;
display: inline-block;
width: 200px;
text-align: center;
border: 1px solid;
}
.dropdown {
position: fixed;
background-color: #fff;
padding-left: 0;
width: 200px;
box-shadow: 0 1px 0 1px black;
display: none;
}
.navbar-item {
margin-left: 0;
list-style: none;
}
.navbar-item:hover .dropdown {
display: block;
}
<ul class="navbar">
<li class="navbar-item">
<a>Item A</a>
<ul class="dropdown">
<li class="dropdown-item">Sub Item A</li>
<li class="dropdown-item">Sub Item B</li>
<li class="dropdown-item">Sub Item C</li>
</ul>
</li>
<li class="navbar-item"><a>Item B</a></li>
<li class="navbar-item"><a>Item C</a></li>
<li class="navbar-item"><a>Item D</a></li>
<li class="navbar-item"><a>Item E</a></li>
</ul>
Edit
I added one more snippet that does not use fixed position. It changes its coordinates when open based on the parent offset.
$('#menu1, #submenu1').mouseover(function(event) {
$('#submenu1').addClass("show").css($('#menu1').offset());
});
$('#menu1, #submenu1').mouseleave(function(event) {
$('#submenu1').removeClass("show");
});
.navbar {
padding-left: 0;
white-space: nowrap;
overflow: auto;
}
.navbar-item {
position: relative;
margin-left: 0;
list-style: none;
display: inline-block;
width: 200px;
text-align: center;
border: 1px solid;
}
.dropdown {
position: absolute;
padding-left: 0;
width: 200px;
box-shadow: 0 1px 0 1px black;
display: none;
}
.dropdown.show {
display: block;
margin-left: 1px;
background-color: #fff;
}
.dropdown-item {
margin-left: 0;
list-style: none;
}
.navbar-item:hover .dropdown {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="navbar">
<li id="menu1" class="navbar-item">
<a>Item A</a>
</li>
<li class="navbar-item"><a>Item B</a></li>
<li class="navbar-item"><a>Item C</a></li>
<li class="navbar-item"><a>Item D</a></li>
<li class="navbar-item"><a>Item E</a></li>
</ul>
<ul id="submenu1" class="dropdown">
<li class="dropdown-item">Sub Item A</li>
<li class="dropdown-item">Sub Item B</li>
<li class="dropdown-item">Sub Item C</li>
</ul>

Here's an option using jQuery.
Basically, as others have mentioned, you'll have to move the subnav items outside of the main nav's wrapper, so that they are not hidden.
We can put them in their own wrapper that has a similar markup to the main nav's wrapper, and then match them up using a data element to allow for showing/hiding on click.
Then, when we scroll the main navbar, we can sync the subnav wrapper to that element's scroll position, so the subnav items appear to be fixed to the main nav items.
Lastly, we can hide the subnav wrapper's scroll bar with CSS.
The snippet below should get you the general idea, then you can style it as necessary to make it look more like the primary and secondary nav items are connected.
Click a nav item in the main nav, then scroll to the side to see it in action:
$(function(){
var navbar = $('.navbar');
var subnavBar = $('.subnavs-wrapper .scrollbar-hider');
$(navbar).find('li').each(function(){
var dataId = $(this).attr('data-id');
var matchingUl = $(this).parent().next().find('ul[data-id="' + dataId + '"]');
$(this).on('click', function(){
$(matchingUl).css('visibility') == 'hidden' ?
$(matchingUl).css('visibility', 'visible') : $(matchingUl).css('visibility', 'hidden');
});
$(navbar).on('scroll', function(){
$(subnavBar).scrollLeft($(this).scrollLeft());
});
});
});
.navbar {
padding-left: 0;
white-space: nowrap;
overflow: auto;
display: flex;
}
.navbar-item {
position: relative;
margin-left: 0;
list-style: none;
flex-shrink: 0;
width: 200px;
text-align: center;
border: 1px solid;
}
.dropdown {
position: absolute;
padding-left: 0;
width: 200px;
box-shadow: 0 1px 0 1px black;
display: none;
}
.navbar-item {
margin-left: 0;
list-style: none;
}
.navbar-item:hover .dropdown {
display: block;
}
.subnavs-wrapper {
overflow: hidden; /* hide scrollbar */
}
.subnavs-wrapper .scrollbar-hider {
display: flex;
overflow: auto;
padding-bottom: 50px; /* hide scrollbar */
margin-bottom: -50px; /* hide scrollbar */
}
.subnav {
width: 200px;
padding-left: 0;
list-style: none;
visibility: hidden;
flex-shrink: 0;
border: 1px solid black;
}
<ul class="navbar">
<li class="navbar-item" data-id="one"><a>Item A</a>
<li class="navbar-item" data-id="two"><a>Item B</a></li>
<li class="navbar-item" data-id="three"><a>Item C</a></li>
<li class="navbar-item" data-id="four"><a>Item D</a></li>
<li class="navbar-item" data-id="five"><a>Item E</a></li>
</ul>
<div class="subnavs-wrapper">
<div class="scrollbar-hider">
<ul class="subnav" data-id="one">
<li>Sub Item A.A</li>
<li>Sub Item A.B</li>
<li>Sub Item A.C</li>
</ul>
<ul class="subnav" data-id="two">
<li><a>Sub Item B.A</a></li>
</ul>
<ul class="subnav" data-id="three">
<li><a>Sub Item C.A</a></li>
<li><a>Sub Item C.B</a></li>
</ul>
<ul class="subnav" data-id="four">
<li><a>Sub Item D.A</a></li>
<li><a>Sub Item D.B</a></li>
</ul>
<ul class="subnav" data-id="five">
<li><a>Sub Item E.A</a></li>
<li><a>Sub Item E.B</a></li>
</ul>
</div>
</div>
<script
src="https://code.jquery.com/jquery-3.2.1.min.js"
integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="
crossorigin="anonymous"></script>

Pure css dropdown menu's submenu with scroller not showing the multidropdown menu

I am using the pure css dropdown menu in one of my project. The submenu contains the multiple lists just like in the snippet:
/*Set the parent <li>’s CSS position property to ‘relative’.*/
ul {
list-style: none;
padding: 0;
margin: 0;
background: #ce4040;
border: 1px solid #e08d8d;
}
ul>li {
border-left: 1px solid #e08d8d;
}
ul li {
display: block;
position: relative;
float: left;
background: #ce4040;
border-bottom: 1px solid #e08d8d;
}
/*The CSS to hide the sub menus.
*/
li ul {
display: none;
}
ul li a {
display: block;
padding: 1em;
text-decoration: none;
white-space: nowrap;
color: #fff;
}
ul li a:hover {
background: #ce4040;
}
/*Displays the dropdown menu on hover.*/
li:hover > ul {
display: block;
position: absolute;
}
li:hover li {
float: none;
}
li:hover a {
background: #ce4040;
}
li:hover li a:hover {
background: #962e2e;
color: #fff;
}
.main-navigation li ul li {
border-top: 0;
}
/*Displays second level dropdown menus to the right of the first level dropdown menu.*/
ul ul ul {
left: 100%;
top: 0;
}
/*Simple clearfix.*/
ul:before,
ul:after {
content: " ";
/* 1 */
display: table;
/* 2 */
}
ul:after {
clear: both;
}
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</ul>
And tried to place scroller like this by additon of css:
li:hover > ul {
display: block;
position: absolute;
max-height:250px;
overflow-y:auto;
}
The result:
/*Set the parent <li>’s CSS position property to ‘relative’.*/
ul {
list-style: none;
padding: 0;
margin: 0;
background: #ce4040;
border:1px solid #e08d8d;
}
ul>li{
border-left:1px solid #e08d8d;
}
ul li {
display: block;
position: relative;
float: left;
background: #ce4040;
border-bottom:1px solid #e08d8d;
}
/*The CSS to hide the sub menus.
*/
li ul { display: none; }
ul li a {
display: block;
padding: 1em;
text-decoration: none;
white-space: nowrap;
color: #fff;
}
ul li a:hover { background: #ce4040; }
/*Displays the dropdown menu on hover.*/
li:hover > ul {
display: block;
position: absolute;
max-height:250px;
overflow-y:auto;
}
li:hover li { float: none; }
li:hover a { background: #ce4040; }
li:hover li a:hover { background: #962e2e; color:#fff;}
.main-navigation li ul li { border-top: 0; }
/*Displays second level dropdown menus to the right of the first level dropdown menu.*/
ul ul ul {
z-index: 9999;
}
/*Simple clearfix.*/
ul:before,
ul:after {
content: " "; /* 1 */
display: table; /* 2 */
}
ul:after { clear: both; }
<ul class="main-navigation">
<li>Home</li>
<li>Front End Design
<ul>
<li>HTML</li>
<li>CSS
<ul>
<li>Resets</li>
<li>Grids</li>
<li>Frameworks
<ul>
<li>Bootstrap</li>
<li>Foundation</li>
<li>Sass</li>
<li>Less
<ul>
<li>Bootstrap</li>
<li>Foundation</li>
<li>Sass</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li>JavaScript
<ul>
<li>Ajax</li>
<li>jQuery</li>
</ul>
</li>
</ul>
</li>
<li>WordPress Development
<ul>
<li>Custom Post Types
<ul>
<li>subPortfolios</li>
<li>subTestimonials</li>
<li>subPortfolios</li>
<li>subTestimonials</li>
</ul>
</li>
<li>Themes</li>
<li>Plugins</li>
<li>Themes</li>
<li>Plugins</li>
<li>Themes</li>
<li>Plugins</li>
<li>Options</li>
<li>Options</li> <li>Themes</li>
<li>Plugins</li>
<li>Options</li>
<li>Options</li>
</ul>
</li>
<li>About Us</li>
</ul>
By placing scroller, the second and third level dropdown menu isnot showing. How can I placescroller without not interrupting the normal functionality of the pure multidowndown css? Any suggestions, tutorials and solutions are highly welcomed as long it leads to solution.

Please change your css
ul ul ul {
left: 100%;
top: 0;
}
to
ul ul ul {
z-index: 9999;
}
I hope it will help you..

css + html menu hitbox

I wrote some code using different internet sources. I ran into a problem -
every object that's in the bottom part of the menu cannot be interacted with.
The menu interferes with everything below where the dropdown falls.
<style>
body {
padding: 0;
margin: 0;
font-family: Arial;
font-size: 23px;
}
#nav {
background-color:1a1a1a;
opacity: 0.9;
}
#nav_wrapper {
width: 960px;
margin: 0 auto;
text-align: right;
}
#nav ul {
list-style-type: none;
padding: 0;
margin: 0;
position: relative;
min-width: 200px;
}
#nav ul li {
display: inline-block;
}
#nav ul li:hover {
background-color: #333;
}
#nav ul li a, visited {
color: #CCC;
display: block;
padding: 15px;
text-decoration: none;
}
#nav ul li:hover ul {
display: block;
}
#nav ul ul {
display: none;
position: absolute;
background-color: #333;
border: 0px solid #222;
border-top: 0;
margin-left: -5px;
}
#nav ul ul li {
display: block;
}
#nav ul ul li a:hover {
color: #699;
}
.left-to-right {
text-align: left;
}
</style>
<html lang="he">
<body dir-"rtl"><div id="nav">
<div id="nav_wrapper">
<div>
<ul <ul dir="RTL">
<li> תרמילים
<ul class="left-to-right">
<!-- <li class="backpacks" id="firstlight-20l"> FirstLight 20L </li>
<li class="backpacks" id="firstlight-30l"> FirstLight 30L </li>
<li class="backpacks" id="firstlight-40l"> FirstLight 40L </li>-->
<li class="backpacks"> rotation180° Professional 38L Deluxe </li>
<li class="backpacks"> rotation180° Horizon 34L </li>
<li class="backpacks"> rotation180° Panorama 22L </li>
<!-- <li class="backpacks" id="rotation180-travel-away"> rotation180° Travel Away 22L </li>-->
<li class="backpacks" id="rotation180-trail"> rotation180° Trail 16L </li>
</ul>
</li>
<li> תיקי מצלמות ספורט
<ul class="left-to-right">
<li>GP 1 kit case
</li>
<li>GP 2 kit case
</li>
</ul>
</li>
<li> אביזרים
<ul class="left-to-right">
<li>r180º Panorama/Horizon Photo Insert
</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
</body>
</html>

#nav_wrapper ul ul li{ text-align:left;}
you need to add this only: demo

You might be able to use vertical-align for the list elements & text-align for the links.

Just add a class to the <ul> tag of each dropdown and add text-align: left to it.
FIDDLE Here

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