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How to Show PNG layers on Hover

I want to implement something like
http://blindstogo.chameleonpower.com/#/scene/Blinds_To_Go\Images\Bedroom/products/-1
and another sample
http://blindstogo.chameleonpower.com/#/scene/Blinds_To_Go\Images\Family_Room/products/-1,-1,-1,-1,-1
but what I've already done is:
please Run snippet
when you hover on menu bar the item shown in on the image.
I put a base image on the floor and stack several PNG. for hover based on the menu, it's fine. But if we want in another way, I mean if the user hovers the image element (or clicked) I wanted the related menu Item set as 'active'.
how we can implement it that when user hover some part of images the menu item set active without map area tags?
$('.selector').hover(function() {
var classItem = $(this).children('a').attr('class');
$('.visualizer > .'+ classItem).show();
},function() {
var classItem = $(this).children('a').attr('class');
$('.visualizer > .'+ classItem).hide();
});
.visualizer > img{
position: absolute;
}
.visualizer > .hover-layer{
z-index: 1000;
display:none;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">Categories</a>
</div>
<ul class="nav navbar-nav">
<li class="selector" ><a href="#" class="all" >All</a></li>
<li class="selector"><a href="#" class="intercom" >interom</a></li>
<li class="selector">powerpoint</li>
</ul>
</div>
</nav>
<h2 class="h2" >Sample Visualizer By Yusef</h2>
<div class="visualizer">
<img src="https://i.stack.imgur.com/rPXyU.png" class="base" />
<img src="https://i.stack.imgur.com/64bLa.png" class="hover-layer intercom all" />
<img src="https://i.stack.imgur.com/QLoXM.png" class="hover-layer powerpoint all" />
</div>
</div>

You can achieve the required functionality by adding custom position CSS. I just update your code snippet, I hope it'll help you out. Thanks
jQuery
$('.image-overlay').hover(function() {
var overlayClass = '.' + $(this).children().attr('class');
$(overlayClass + '.hover-layer').show();
},function() {
var overlayClass = '.' + $(this).children().attr('class');
$(overlayClass + '.hover-layer').hide();
});
CSS
#powerpoint-hover-container {
position: absolute;
left: 430px;
top: 271px;
width: 38px;
height: 29px;
z-index: 1001;
}
#intercom-hover-container {
position: absolute;
right: 366px;
top: 270px;
width: 20px;
height: 13px;
z-index: 1001;
}
HTML
<div id="intercom-hover-container" class="image-overlay">
<span class="intercom"></span>
</div>
<div id="powerpoint-hover-container" class="image-overlay">
<span class="powerpoint"></span>
</div>
$('.selector').hover(function() {
var classItem = $(this).children('a').attr('class');
$('.visualizer > .'+ classItem).show();
},function() {
var classItem = $(this).children('a').attr('class');
$('.visualizer > .'+ classItem).hide();
});
$('.image-overlay').hover(function() {
var overlayClass = '.' + $(this).children().attr('class');
$(overlayClass + '.hover-layer').show();
},function() {
var overlayClass = '.' + $(this).children().attr('class');
$(overlayClass + '.hover-layer').hide();
});
.visualizer {
position: relative;
}
.visualizer > img{
position: absolute;
}
.visualizer > .hover-layer{
z-index: 1000;
display:none;
}
#powerpoint-hover-container {
position: absolute;
left: 430px;
top: 271px;
width: 38px;
height: 29px;
z-index: 1001;
}
#intercom-hover-container {
position: absolute;
right: 366px;
top: 270px;
width: 20px;
height: 13px;
z-index: 1001;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">Categories</a>
</div>
<ul class="nav navbar-nav">
<li class="selector"><a href="#" class="all" >All</a></li>
<li class="selector">interom</li>
<li class="selector">powerpoint</li>
</ul>
</div>
</nav>
<h2 class="h2" >Sample Visualizer By Yusef</h2>
<div class="visualizer">
<div id="intercom-hover-container" class="image-overlay">
<span class="intercom"></span>
</div>
<div id="powerpoint-hover-container" class="image-overlay">
<span class="powerpoint"></span>
</div>
<img src="https://i.stack.imgur.com/rPXyU.png" class="base" />
<img src="https://i.stack.imgur.com/64bLa.png" class="hover-layer intercom all" />
<img src="https://i.stack.imgur.com/QLoXM.png" class="hover-layer powerpoint all" />
</div>
</div>

Share 100vh between div and position:sticky navbar

I want to share the initial visible area of my page between a slideshow and my navbar like the below diagram which will then stick at the top when you scroll down the document. This is where I've run into issues.
I've tried doing something like height: 90vh for my slideshow and height: 10vh for my navbar but I want the website to be dynamic and able to fit to most resolutions until you hit cellphone level or at least like 200% zoom on Microsoft edge wherein another stylesheet will be used.
I've also tried placing them within the same div, setting height: 90% for the slideshow and height: auto for the navbar. This worked best in terms of how dynamic it is but the position: sticky obviously didn't work because it only traverses the height of the parent div.
The one that works best is setting the slideshow height to height: 90vh and allowing the navbar to go accordingly. It kinda sorta works but not nearly good enough for me.
The navbar has to initially be at the bottom then stick to the top. If possible I'd rather have a purely CSS solution, but I am open to javascript. Though I'd rather have pure javascript as opposed to jQuery but if it's well explained I'm okay with it.
The actual question is: How do I make my navbar and my slideshow share the initial visible height dynamically?
Here is all the relevant code:
#container {
display: flex;
flex-direction: column;
height: 100vh;
}
.slideshow-base {
flex-grow: 1;
width: 100%;
margin: 0px;
}
.slideshow-container {
height: 100%;
width: 100%;
position: relative;
overflow: hidden;
}
.Slides {
position: absolute;
transform: translateX(-100%);
transition: transform 2s;
display: inline-block;
width: 100%;
height: 100%;
margin: 0;
}
.Slides-Images {
width: 100%;
height: 100%;
object-fit: cover;
}
.navbar-base {
font-weight: bold;
z-index: 2;
font-variant: small-caps;
height: 100%;
width: auto;
top: 0px;
background-color: rgba(50, 64, 147, 0.9);
display: block;
border-bottom: 1px solid rgb(226, 208, 0);
}
<div id="container">
<!--Slideshow-->
<div class="slideshow-base" style="background-color: rgb(50, 64, 147); height: 90vh">
<div class="slideshow-container">
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-1.jpg" class="Slides-Images">
</div>
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-2.jpg" class="Slides-Images">
</div>
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-3.jpg" class="Slides-Images">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
<div class="dot-base">
<span class="dot" onclick="currentSlide(1)">᛫</span>
<span class="dot" onclick="currentSlide(2)">᛫</span>
<span class="dot" onclick="currentSlide(3)">᛫</span>
</div>
</div>
</div>
<hr />
<!--Sticky Navbar-->
<div class="navbar-base" style="width: 100%; height: auto; position: sticky;">
<ul>
<li class="navbar-button" style="display: inline-block;"> #Html.ActionLink("main page", "MainPage", "Home") </li>
<li class="navbar-button" style="display: inline-block;">
#Html.ActionLink("about", "About", "About")
<ul class="navbar-ddmenu">
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("academy", "Academy", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("the club", "DKClub", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("taebo", "TaeBo", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("founders and staff", "Staff", "About")</li>
</ul>
</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("contacts", "Contacts")</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("gallery", "Gallery")</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("shop dk", "Index", "Shop")</li>
</ul>
</div>
</div>

Use CSS Grids
body {
margin: 0;
}
#container {
width: 100vw;
background: #ccc;
padding: 10px;
height: 100vh;
display: grid;
grid-template-rows: 90vh 10vh;
grid-gap: 10px;
}
#container>div {
background: #999;
}
<section id="container">
<div>Sticky</div>
<div>NavBar</div>
</section>

Ok, I would use a flexbox approach for your initial view, then a bit of js to add a class on scroll:
window.onscroll = function() {
var nav = document.getElementById('nav');
var scrollTop = window.pageYOffset || document.body.scrollTop || document.documentElement.scrollTop;
if (scrollTop > 100) { // not sure how much you want it to scroll before it is made sticky
nav.classList.add("fixed");
} else {
nav.classList.remove("fixed");
}
}
body {
margin:0;
height:200vh; /* just so there is some scrolling */
}
.container {
height:100vh;
display:flex;
flex-direction:column;
}
.slideshow-base {
flex-grow:1; /* this will make shadow base take the rest of the available height to start with */
}
.fixed {
position:fixed;
top:0;
left:0;
right:0;
}
<div class="container">
<div class="slideshow-base" style="background-color: rgb(50, 64, 147); height: 90vh">
<div class="slideshow-container">
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-1.jpg" class="Slides-Images">
</div>
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-2.jpg" class="Slides-Images">
</div>
<div class="Slides">
<img src="~/Images/Slideshow/Gallery-3.jpg" class="Slides-Images">
</div>
<a class="prev" onclick="plusSlides(-1)">❮</a>
<a class="next" onclick="plusSlides(1)">❯</a>
<div class="dot-base">
<span class="dot" onclick="currentSlide(1)">᛫</span>
<span class="dot" onclick="currentSlide(2)">᛫</span>
<span class="dot" onclick="currentSlide(3)">᛫</span>
</div>
</div>
</div>
<hr />
<!--Sticky Navbar-->
<div id="nav" class="navbar-base">
<ul>
<li class="navbar-button" style="display: inline-block;"> #Html.ActionLink("main page", "MainPage", "Home") </li>
<li class="navbar-button" style="display: inline-block;">
#Html.ActionLink("about", "About", "About")
<ul class="navbar-ddmenu">
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("academy", "Academy", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("the club", "DKClub", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("taebo", "TaeBo", "About")</li>
<li class="navbar-ddcontent" style="display: inline-block;">#Html.ActionLink("founders and staff", "Staff", "About")</li>
</ul>
</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("contacts", "Contacts")</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("gallery", "Gallery")</li>
<li class="navbar-button" style="float:right"> #Html.ActionLink("shop dk", "Index", "Shop")</li>
</ul>
</div>
</div>

You can probably wrap those 2 elements in a wrapper (and optionally give it a height) and use flexbox to make them share space.
In the example below, the slideshow will always cover 90% of the wrapper's height and nav will cover 10% of it.
.slideshow,
.nav {
border: 2px solid #000
}
.wrapper {
display: flex;
flex-direction: column;
height: 90vh
}
.nav {
/* An arbitrary value to start with */
flex-grow: 1;
}
.slideshow {
/* Grow this element 9 times more than the other element. */
flex-grow: 9;
}
<div class="wrapper">
<div class="slideshow">
Slideshow content
</div>
<nav class="nav">
Navigation content
</nav>
</div>

How can i slidetoggle to the left?

I have two glyphicon which i want to show the information to the left using slidetoggle. But, It opens downward. Please, help.
$(document).ready(function() {
$('#show_icon,.showhide_icon').hover(function() {
$(this).next().slideToggle("slow");
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
<header class="masthead">
<div class="container">
<div class="nav-header">
<div class="pull-right hidden-sm">
<ul>
<li class="listmenu">
<div id="show_icon"><span class="glyphicon glyphicon-shopping-cart"></span></div>
<div id="categories">
<div CLASS="showhide_icon">Login/Register</div>
</div>
</li>
<li class="listmenu">
<div id="show_icon"><span class="glyphicon glyphicon-shopping-cart"></span></div>
<div id="categories">
<div CLASS="showhide_icon">Shopping Bag</div>
</div>
</li>
</ul>
</div>
</div>
</div>
</header>
The CSS Properties goes like this.
CSS Properties
.listmenu {
float: left;
width: auto;
margin-right: 0;
height: 30px;
padding: 0 10px;
overflow: hidden;
}
#categories {
display: none;
width: 200px;
}

slideToggle() animates on the height of the element which is why you're seeing it open downward.
If you want a animation like you've linked in the comments use animate() to handle the width of the element. The site linked is using overflow: hidden and changing the width of the container to show the icon only or icon and text.
Edit: After reviewing your question again, a better solution might be to handle this with css:
The html is edited to include only what is needed to make this work. You'll want to review this for your purposes as well:
.listmenu {
display: inline;
}
.umMenu {
height: 16px;
max-width: 14px;
display: inline-block;
overflow: hidden;
}
.listmenu:hover .umMenu {
max-width: 500px;
/*Can be any # of sufficient width to display all content*/
transition: 2s;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
<header class="masthead">
<div class="container">
<div class="nav-header">
<div class="pull-right hidden-sm">
<ul>
<li class="listmenu">
Login/Register
</li>
<li class="listmenu">
Shopping bag
</li>
</ul>
</div>
</div>
</div>
</header>

How to scroll up a div when hovering over another element

I have an absolute div that is behind my footer. When I hover over another element (#snapchat) I want that absolute div to scroll up from behind the footer and stop above it where it can be seen. How would I do this?
.snapcode-footer {
position: absolute;
padding-top: 20px;
text-align: center;
left: 0;
right: 0;
}
.sub-sub-footer {
position: relative;
z-index: 1;
background-color: #F7F7F7;
padding-top: 35px;
padding-bottom: 20px;
}
.sub-footer {
position: relative;
z-index: 1;
background-color: #edeeef;
margin-top: 0px;
}
<div class="snapcode-footer">
<img src="https://wumbo.com/wp-content/uploads/2016/11/snapcode.png" width="250px" height="auto" alt="Scan to add us on Snapchat!">
</div>
<div class="sub-sub-footer">
<ul class="social-footer">
<li id="twitter"><img src="/wp-content/uploads/2016/11/Twitter-color.png" alt="Follow us on Twitter #wumbo"/></li>
<li id="snapchat"><img src="/wp-content/uploads/2016/11/Snapchat-color.png" alt="Follow us on Snapchat #wumbo"/></li>
<li id="insta"><img src="/wp-content/uploads/2016/11/Instagram-color.png" alt="Follow us on Instagram #wumbo"/></li>
<li id="facebook"><img src="/wp-content/uploads/2016/11/Facebook-color.png" alt="Follow us on Facebook #wumbo"/></li>
</ul>
</div>
<div class="sub-footer">
<div class="container">
<div class="row">
<div class="col-md-5-footer">
<div class="footer-img">
<img src="https://www.wumbo.com/wp-content/uploads/2016/11/HullSpar_Slogan.png" alt="Made For The Modern Seafarer™"/>
<div/>
</div>
</div>

I'm re-positioned your div.snapcode footer and applied a css property to
#snapchat:hover ~ .snapcode-footer . hopes this will help you :)
.snapcode-footer {
position: absolute;
padding-top: 90px;
text-align: center;
left: 0;
right: 0;
}
.sub-sub-footer {
position: relative;
z-index: 1;
background-color: #F7F7F7;
padding-top: 35px;
padding-bottom: 20px;
}
.sub-footer {
position: relative;
z-index: 1;
background-color: #edeeef;
margin-top: 0px;
}
#snapchat:hover ~ .snapcode-footer{
z-index:999;
color:green;
position:relative;
margin-bottom:100px;
margin-left:50px;
}
<div class="sub-sub-footer">
<ul class="social-footer">
<li id="twitter"><img src="/wp-content/uploads/2016/11/Twitter-color.png" alt="Follow us on Twitter #hullandspar"/></li>
<li id="snapchat"><img src="/wp-content/uploads/2016/11/Snapchat-color.png" alt="Follow us on Snapchat #hullandspar"/></li>
<div class="snapcode-footer">
<img src="https://hullandspar.com/wp-content/uploads/2016/11/snapcode.png" width="250px" height="auto" alt="Scan to add us on Snapchat!">
</div>
<li id="insta"><img src="/wp-content/uploads/2016/11/Instagram-color.png" alt="Follow us on Instagram #hullandspar"/></li>
<li id="facebook"><img src="/wp-content/uploads/2016/11/Facebook-color.png" alt="Follow us on Facebook #hullandspar"/></li>
</ul>
</div>
<div class="sub-footer">
<div class="container">
<div class="row">
<div class="col-md-5-footer">
<div class="footer-img">
<img src="https://www.hullandspar.com/wp-content/uploads/2016/11/HullSpar_Slogan.png" alt="Made For The Modern Seafarer™"/>
</div>
</div>
</div>

I'd suggest giving snapcode-footer an id to make it easier to control.
<div class="snapcode-footer" id="snapcode">
<script>
var hover = 0;
</script>
Then you make a script on #snapchat
<li id="snapchat"onmouseenter="hover = 1" onmouseout="hover = 0"><img src="/wp-content/uploads/2016/11/Snapchat-color.png" alt="Follow us on Snapchat #hullandspar"/></li>
Lastly, you make a script for if the mouse is hovering over the #snapchat element to increase height or to stay in one place
<script>
setInterval("if(hover == 1){snapcode.top--}");
setInterval("if(hover == 0){snapcode.top = 0}");
</script>

How to make an image in a separate div change on hover of nav?

I have a site I'm working on where I have a nav bar in a div at the top of the page followed by a separate div which contains an image directly below it.
I'm trying to figure out the best way to change the image by hovering over each part of the nav bar.
Basically I want an image for home to show up when the home nav feature is hovered and so on with the rest of the menu.
UPDATE:
As I tried to explain before (not as clear as I could have) I want to make each nav bar element (Home, Downloads, etc.) show a different image in the div below it. Here is the section of code for the two elements.
<li class="active">Home</li>
<li >About</li>
<li >Mods</li>
<li>Forums</li>
<li >Downloads</li>
<li>Blog</li>
</ul>
</div>
</nav>
<div class="parallax-container">
<div class="container" style="background: rgb(55,71,79); width:960px; padding-top: 10px; padding-left: 50px; border: 2px; border-radius: 50px;">
<div class="row">
<div class="hover-image white-text col s12 l6">
<img src="homeimage.png" class="hover image" style="height:auto; width:auto; max-width: 860px; max-height: 860px;"/>
<h5 class="hover-header" style="padding-left: 20px;">Home</h2>
<p class="hover-paragraph" style="padding-left: 25px;">Welcome to the page!</p>
</div>
</div>
</div>
<div class="parallax"><img src="/img/image.png"></div>
</div>
<style>
.hover-image {
position: relative;
width: 100%;
margin: auto;
}
.hover-header {
position: absolute;
top: 350px;
left: 10;
width: 100%;
}
.hover-paragraph {
position: absolute;
top: 380px;
width: 100%;
}
</style>
Page Layout

Try CSS something like this;
.nav:hover .image{
background-image: url('path/to/image.ext');
}
If you can share your code, I can be more specific.

try this code -
CSS -
#navImage img{
display:block;
width:500px;
height:auto;
}
#myNav{
list-style-type: none;
}
#myNav li {
display: inline;
padding: 10px;
}
#myNav li a:hover {
color:#00ffff;
}
#navImage img{
display:none;
}
HTML
<ul id="myNav">
<li>Home</li>
<li>Page 1</li>
<li>Page 2</li>
<li>Page 3</li>
</ul>
<div id="navImage">
<img src="img_chania.jpg" alt="Chania">
<img src="img_chania2.jpg" alt="Chania">
<img src="img_flower.jpg" alt="Flower">
<img src="img_flower2.jpg" alt="Flower">
</div>
JS to initialize (with jQuery) -
$("#myNav li a").on('mouseover', function(){
$("#navImage img").hide().eq($(this).closest('li').index()).show();
});
Please note, if you are working on responsive design(using bootstrap navigation), you need to do changes accordingly.
jsfiddle - https://jsfiddle.net/guruling/k2zgot5r/

.myButtonLink {
display: block;
width: 100px;
height: 100px;
background: url('/path/to/myImage.png') bottom;
text-indent: -99999px;
}
.myButtonLink:hover {
background-position: 0 0;
}
<a class="myButtonLink" href="#LinkURL">Leaf</a>
Do you want something like this. Please check this link:-http://kyleschaeffer.com/development/pure-css-image-hover/