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How to change logo and add a colored border to the bottom of my fixed header when user scrolls down?

There is a lot of information online regarding header effects on scroll and I've spent a lot of time trying to figure this out on my own. I was hoping to find a way to do this without using JS but there doesn't seem to be a way. I've tried just adding a simple effect (changing height of header on scroll) using JS ... hoping that once I got the header to actually respond to this I could work with it to make the effects that I'm wanting. But I can't even get the header to respond. Ultimately I'm wanting the header to slightly reduce in height, the logo will change to a different image and there will be a 15px colored border added to the bottom. I know that's a lot for a novice web designer to try to attempt but I'd really love to figure out how to do it. Any help or direction to good online resources for this would be so appreciated.
I'm adding only my html and css just to keep things less cluttered. I can add what I've tried in my js file if I need to. I've commenting out some css that went with the js that clearly doesn't work. Thanks in advance for your time.
<header>
<div id="nav">
<div id="nav_left">
HOME
SERVICES
PORTFOLIO
</div>
<a href="index.html" id="logo" class="noHover"><img src="images/logo_6_small.png" alt="Claire Crawford"
id="logo_Claire" /></a>
<div id="nav_right">
BLOG
ABOUT
GET IN TOUCH
</div>
</div>
</header>
header {
height: 160px;
position: fixed;
top: 0;
width: 100%;
background: white;
/* border-bottom: 15px solid rgb(197, 179, 55) */
}
/* header border on scroll
header.fixed.scrolled .header_bottom .container_inner {
border-bottom: 1px solid #0a0a0a;
} */
/* header.sticky {
height: 120px;
} */
/* header {
transition: padding 300ms ease;
} */

try to use this code in your actual code. It might work well
$(function() {
$(window).scroll(function() {
if ($(this).scrollTop() > 200) {
$('#logo img').attr('src', 'http://placehold.it/220?text=Original+Logo!');
$("#nav").css("border-bottom", "none");
}
if ($(this).scrollTop() < 200) {
$('#logo img').attr('src', 'https://cdn-images-1.medium.com/max/1600/1*4mdh6im57oFHSNY4syD_2Q.png');
$("#nav").css("border-bottom", "2px solid red");
}
})
});
header {
height: 160px;
position: fixed;
top: 0;
width: 100%;
background: white;
/* border-bottom: 15px solid rgb(197, 179, 55) */
}
.wrapper {
height: 1000px;
}
img {
width: 100px;
}
#nav {
width: 100%;
display: flex;
height: 110px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="wrapper">
<header>
<div id="nav">
<div id="nav_left">
HOME
SERVICES
PORTFOLIO
</div>
<img src="https://cdn-images-1.medium.com/max/1600/1*4mdh6im57oFHSNY4syD_2Q.png" alt="Claire Crawford" id="logo_Claire" />
<div id="nav_right">
BLOG
ABOUT
GET IN TOUCH
</div>
</div>
</header>
</div>
I am telling you step by step:
1. add this to your index.html page. you need to add jquery to work this code. <script src="code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
2. Then copy paste my code into your js file and edit it as you want.
3. i have write a funtion to scroll. you can see i have write 200 so that if you scroll 200px below the logo will change. so there are two condition I have written
if ($(this).scrollTop() > 200) {
$('#logo img').attr('src', 'http://placehold.it/220?text=Original+Logo!');
$("#nav").css("border-bottom", "none");
}
this one is for after you scroll 200px and the other one is your initial stage.
$('#logo img').attr('src', 'http://placehold.it/220?text=Original+Logo!');
here #logo is the id from html and img is for img inside logo div.
4.$("#nav").css("border-bottom", "none"); nav is for nav div and I added border css by adding .css here

How to increase margin-right value only for Chrome in JavaScript?

I need some help to achieve my website. I have a div animated in JS that slides into the screen from right to left (with a button and by a margin-right action). It works fine in Firefox but not in Chrome : with the same value on margin-right, I see the div entirely in FF when showed, but not in GG, I only see a part of it.
The same problem appears for hiding the div; the value isn't high enough so there's still a visible part. I set a higher value for Chrome with "-webkit-margin-end" in my CSS, that helped for hidding, but when showed the problem remains. I guess I have to add a Chrome option in my script, so the "margin-right" value (or the "-webkit-margin-end" value ?) could be increased too when animated, but I actually can't find any answer to my request.
That's probably because I'm not good enough to apply it to my code, and that's why a bit help would really be appreciated.
Furthermore, is there a way to slide on page load ? I'd like the div 'open' when the user enters the website.
Here's a piece of my code :
/* CSS */
/* div */
#texte {
background-color:#FFFFFF;
border-left:0.5px solid #000000;
color:#000000;
font-size:0.9vw;
font-weight:normal;
font-family:"Proza Libre", sans-serif;
top:0;
bottom:0;
right:0;
margin-right:-125px;
-webkit-margin-end:-350px;
width:19.4%;
padding:1vw 0.6vw 1vw 1vw;
float:right;
position:fixed;
display:block;
z-index:1000;
overflow-x:hidden;
overflow-y:auto;
}
/* button */
#plus {
bottom:2.5vw;
right:2.5vw;
position:fixed;
color:#000000;
text-align:center;
font-family:serif;
font-size: 2.5vw;
font-weight:normal;
line-height:2.5vw;
text-decoration:none;
cursor:pointer;
z-index:1000;
border: 0.8px solid #000;
-webkit-border-radius: 50%;
-moz-border-radius: 50%;
border-radius: 50%;
width:2.5vw;
height:2.5vw;
}
/* SCRIPT */
jQuery.easing.def = 'easeOutBounce';
$('#plus').click(function() {
if($(this).css("margin-right") == "125px") {
$('#texte').animate({"margin-right": '-=125'}, 'slow');
$('#plus').animate({"margin-right": '-=125'}, 'slow');
}
else {
$('#texte').animate({"margin-right": '+=125'}, 'slow');
$('#plus').animate({"margin-right": '+=125'}, 'slow');
}
});
Firefox :
Chrome :

Rather than finding an ad-hoc solution for each browser-specific bug maybe you can try finding a way to make your code work the same way for every browser.
I would avoid manipulating the margins. Instead I suggest having one main DIV with a fixed width and then have another DIV inside with the paddings you need. Then do the animation with the right attribute.
Check this snippet and see if this demo works for you.
function togglePanel() {
if (parseInt($('#main').css('right')) == 0) {
// get the current width (+ horizontal padding) (+ the border size * 2)
width = $('#main').width() + parseInt($('#main').css('padding-left')) + parseInt($('#main').css('padding-right')) + 2;
$('#main').animate({"right": -width}, 'slow');
} else {
$('#main').animate({"right": 0}, 'slow');
}
}
$('#toggleMain').on('click', function() {
togglePanel();
});
$(document).ready(function() {
togglePanel();
});
* {box-sizing: border-box;}
#main {
background:blue;
position:absolute;
padding:10px;
right:-222px;
top:0px;
bottom:0px;
width:200px;
border:1px solid red;
}
#inner {
width:100%;
padding:10px;
border:1px solid green;
background:orange;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="main"><div id="inner">Here goes the text<br/>and more text</div></div>
<button id="toggleMain">Toggle</button>

Try this, for detecting if chrome and adding margin.
$(document).ready(function(){
var isChrome = !!window.chrome;
if(isChrome) {
$(".element").css("margin-right", "30px");
}
});

Browser detection is no good practice, see for example Is jQuery $.browser Deprecated?
A better way is to provide general cross browser solutions.
You could for example use normalize.css and then apply your own css. This maybe makes the css "resets" you need, so your own css looks good/equal in all browsers.

Dynamically positioning element on scroll

Goal
To have the page navigation positioned lower on the page when initially loaded. So that it looks like pictured below.
Background
I created a navigational element that is using Headroom.js to control its position. The point of the library is that it moves the desired navigational item out of view when a user is scrolling down so that you can see more content. Then the item shows up when you scroll back up to make it convenient to click on a link if that is what you needed to do.
Current State
I have this current demo on codepen.
That navigational item is at the top of the page but on a lower z-index. So not initially visible.
when you scroll down the element is out of view.
But when you scroll up, it is where it needs to be
Code
HTML
<nav id="page-menu" class="link-header header--fixed slide slide--reset" role="banner">
<ul>
<li>Products</li>
<li>Features</li>
<li>Testimonials</li>
<li>Cases</li>
</ul>
</nav>
CSS
#page-menu {
background-color: #BA222B;
list-style-type: none;
width: 100%;
z-index:10;
}
#page-menu ul {
list-style-type: none;
margin: 0;
position: absolute;
bottom: 5px;
right: 10px;
}
#page-menu ul li {
display: inline-block;
margin-left: 10px;
}
#page-menu ul li a {
text-decoration: none;
color: #fff;
}
.link-header {
background-color:#292f36;
height: 100px;
}
.header--fixed {
position:fixed;
z-index:10;
right:0;
left:0;
top:0px;
}
jQuery
(function() {
new Headroom(document.querySelector("#page-menu"), {
tolerance: 5,
offset : 150,
classes: {
initial: "slide",
pinned: "slide--reset",
unpinned: "slide--up"
}
}).init();
}());
Full demo on codepen.

Goal :
From what you are describing, you want the read navigation to appear as such on page load:
And move with the gray bar, but and down, as the user scrolls, until it cutoff point reaches the bottom of the gray bar. Then you want things to kick in, and have the red bar slide up and out of view, and then up and down depending on scroll. You want the transition to be smooth.
Method:
The thing to keep in mind for a smooth transition is that you have two states: A top state and a bottom state. You have to design both, you have to figure out the exact height to change over, and you have to make sure that they will be identical at that spot, so appear seamless.
Top State:
We don't need any sort of extra positioning here. We want it to be static in fact, as odd as that might sound.
Bottom State:
We want fixed positioning here. Since we want the changeover to occur right when the red bar touches the top of the window, your CSS in fixed-header is perfect already.
Changeover Height:
The header and the gray nav bar combined are 180px, so that number will be our change over.
Code:
1. Statechange
Lets work backwards and take the state change first. You will need to change from 150px to 180px in a lot of places. For example, your JS code:
Existing JS:
if ($(window).scrollTop() >= 150) {
...
(function() {
new Headroom(document.querySelector("#page-menu"), {
tolerance: 5,
offset : 150,
New JS:
if ($(window).scrollTop() >= 180) {
...
(function() {
new Headroom(document.querySelector("#page-menu"), {
tolerance: 5,
offset : 180,
And your header will need an updated height, or a removal of height entirely.
Existing CSS:
header {
height:150px;
position: relative;
z-index:30;
}
New CSS:
header {
position: relative;
z-index:30;
}
2. Top State
The big thing here messing you up is that for some reason the library you are using is applying .header--fixed and link-header on page load. I don't know how to prevent this, but we can just neutralize is by removing them from your CSS.
Remove This CSS:
.link-header {
background-color:#292f36;
height: 100px;
}
.header--fixed {
position:fixed;
z-index:10;
right:0;
left:0;
top:0px;
}
Second, we need to tweak the ul inside your red nav.
Existing CSS:
#page-menu ul {
list-style-type: none;
margin: 0;
position: absolute;
bottom: 5px;
right: 10px;
}
New CSS:
#page-menu ul {
list-style-type: none;
margin: 0 auto;
padding:0;
width:960px;
max-width:100%;
text-align:right;
}
3. Bottom State
Everything works really well here aleady, except that the fixed-header class is getting added to the gray nav as well. We need to tweak our jQuery selector bit.
Existing JS:
if ($(window).scrollTop() >= 180) {
$('nav#page-menu').addClass('fixed-header');
}
else {
$('nav#page-menu').removeClass('fixed-header');
}
NewJS:
if ($(window).scrollTop() >= 180) {
$('header nav').addClass('fixed-header');
}
else {
$('header nav').removeClass('fixed-header');
}
4. Misc Cleanup
Everything looks really good here, except that the lis inside our two navs don't line up. We need to fix some margin-right to bring them into line.
Existing CSS:
#page-menu ul li {
display: inline-block;
margin-left: 10px;
}
New CSS:
#page-menu ul li {
display: inline-block;
margin-left: 10px;
margin-right: 10px;
}
Finally, I noticed that there's a missing closing bracket in your HTML, in the gray nav. It's not hurting much, but it could:
<nav>
<ul>
<li>Dentists</li>
<li>Labs</li>
<li>Patients</li>
<ul> <--- ( Should be </ul> )
</nav>
End Result:
http://codepen.io/anon/pen/qIrhx

How do I make the rest of the page fade to black once my div loads and fade out once the div is closed?

I've been piecing together code and tweeking it to eventually come together with this. The code itself is fairly simple and basically just saying that once someone visits the page for the first time then drop a cookie and no longer display it for the visitor when he visits the page, well for 365 days. My only issue is that once the div loads and loads out, I can't figure out how to fade in and fade out the background, I can only fade the div itself. I've tried wrapping it in a overlay div but I think I'm approaching it all wrong.
The code looks a bit much on here so I've attached a jsfiddle for a working example: http://jsfiddle.net/newbieturd/F29uv/
** Note: Once you run the fiddle once, you will have to clear your cookie. The DIV only appears once
CSS:
#welcome {
box-sizing:border-box;
padding:34px 18px 18px 18px;
height:120px;
width:300px;
background:Salmon;
color:#f9f9f9;
border-radius:6px;
position:absolute;
top:50%;
left:50%;
margin:-60px 0 0 -150px;
font:300 normal 1.4em/1.2 'Signika', sans-serif;
display:none;
}
#close {
height:30px;
width:30px;
background:url('http://www.omagdigital.com/images/articles/WebArticle-CloseButton.png') no-repeat;
position:absolute;
top:2px;
right:2px;
cursor:pointer;
}
JS:
<script type='text/javascript'>//<![CDATA[
$(window).load(function(){
(function(factory){if(typeof define==='function'&&define.amd){define(['jquery'],factory);}else{factory(jQuery);}}(function($){var pluses=/\+/g;function raw(s){return s;}function decoded(s){return decodeURIComponent(s.replace(pluses,' '));}function converted(s){if(s.indexOf('"')===0){s=s.slice(1,-1).replace(/\\"/g,'"').replace(/\\\\/g,'\\');}try{return config.json?JSON.parse(s):s;}catch(er){}}var config=$.cookie=function(key,value,options){if(value!==undefined){options=$.extend({},config.defaults,options);if(typeof options.expires==='number'){var days=options.expires,t=options.expires=new Date();t.setDate(t.getDate()+days);}value=config.json?JSON.stringify(value):String(value);return(document.cookie=[config.raw?key:encodeURIComponent(key),'=',config.raw?value:encodeURIComponent(value),options.expires?'; expires='+options.expires.toUTCString():'',options.path?'; path='+options.path:'',options.domain?'; domain='+options.domain:'',options.secure?'; secure':''].join(''));}var decode=config.raw?raw:decoded;var cookies=document.cookie.split('; ');var result=key?undefined:{};for(var i=0,l=cookies.length;i<l;i++){var parts=cookies[i].split('=');var name=decode(parts.shift());var cookie=decode(parts.join('='));if(key&&key===name){result=converted(cookie);break;}if(!key){result[name]=converted(cookie);}}return result;};config.defaults={};$.removeCookie=function(key,options){if($.cookie(key)!==undefined){$.cookie(key,'',$.extend({},options,{expires:-1}));return true;}return false;};}));
function setCookie() {
$.cookie("visited", "true", { expires: 365 });
}
if ($.cookie('visited') != 'true') {
$('#welcome').show(1800);
setCookie();
} else {
$('#welcome').remove();
}
$('#close').click(function() {
$('#welcome').hide(1800);
});
// $.cookie("visited", null);
});//]]>
</script>
HTML:
<div id="welcome">
<span id="close"></span>
Interstitial Message. You will only see this message once every 365 days.
</div>
<p> Hello World. </p>

Is this what you are looking for? I gave the popup a parent container that will serve as the overlay.
HTML:
<div class="overlay">
<div id="welcome">
<span id="close"></span>
This is the only time you will see this message :)
</div>
</div>
CSS:
.overlay {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.4);
z-index: 99;
}
jQuery:
if ($.cookie('visited') != 'true') {
$('#welcome, .overlay').show(100); // If the condiditon is true then show overlay
setCookie();
} else {
$('#welcome').remove();
}
$('#close').click(function() {
$('#welcome').hide(100); // Can also be added to this jQuery selector but the animation was odd
$('.overlay').fadeOut(100); // Fades out on click
});
Finally the fiddle: DEMO

Give your #welcome div a z-index (11 for example) and add css to give your document body full height and width:
html, body {
height: 100%;
width: 100%;
}
You're going to add a glass pane div to the body and it needs a height and width to fill the body of the page which, in your current example, has no height or width set
And then add a background div with a color of your choosing and a z-index less than your #welcome div such as:
<div id="glass_pane" style="width: 100%; height: 100%; z-index: 10; position: absolute: top: 0px; left: 0px; background-color: #000;"></div>
Ans then fade it in or out, remove it when you like, change the transparency

Place animated footer under other divs

so I wanted an animated footer for my webpage using jquery. There's supposed to be a button which should trigger the animation. I found a nice example for all this, and everything is fine and dandy. Except that the button (including the footer) has this code that makes it stick to the bottom of your web browser, rather than to the bottom of the page. I do [i]not[/i] want it to, like, "scroll" along with the page, I realy want it to be underneath all my other divs. I tried putting it in the div container (which has all my other divs in it as well), but that doesn't seem to work.
Now, (after 2.5 hours of googling) I found out that it might/may/could have something to do with "absolute" positioning in the CSS, so I tried switching some things around such as giving the footer's container a relative position or giving it an "overflow: hidden;" along with the rest a left float but nothing seemed to solve my problem. (I could've done something wrong, not that great with CSS after all :-/)
I hope someone is able/willing to help.
P.S. Here's the example I used:
http://return-true.com/2010/04/jquery-pop-up-footer-version-2/
and here's the code:
Javascript:
jQuery(function($) {
var open = false;
$('#footerSlideButton').click(function () {
if(open === false) {
$('#footerSlideContent').animate({ height: '300px' });
$(this).css('backgroundPosition', 'bottom left');
open = true;
} else {
$('#footerSlideContent').animate({ height: '0px' });
$(this).css('backgroundPosition', 'top left');
open = false;
}
});
});
HTML:
<div id="footerPlacement">
<div id="footerSlideContainer">
<div id="footerSlideButton"></div>
<div id="footerSlideContent">
<div id="footerSlideText">
<h3>Hey! I'm a Sliding Footer</h3>
<p>What's a Sliding Footer? Well I'm a cool little element which can be hidden from view, and revealed when the user wants to see me.</p>
<p>What can you use me for? Well look at all this stuff:</p>
<ul>
<li>Sales information</li>
<li>Important updates</li>
<li>Unobtrusive about panel</li>
<li>Or just a good ol' footer</li>
</ul>
<p>There are obviously many other uses, but these are the few useful ones I can think of.</p>
</div>
</div>
</div>
</div>
CSS:
#footerPlacement {
margin-bottom: 0px;
width: 1000px;
margin-left: auto;
margin-right: auto;
}
#footerSlideContainer {
position: fixed;
margin-left: 0px;
bottom:0px;
width: 1000px;
}
#footerSlideButton {
background: url('../images/footer/footerbtn.png') top left no-repeat transparent;
position: absolute;
top: -55px;
right: 20px;
width:50px;
height:50px;
border: none;
cursor: pointer;
}
#footerSlideContent {
width: 100%;
height: 10px;
background: #251b15;
color: #CCCCCC;
font-size: 0.8em;
border: none;
font-family: DejaVuSansBook, Sans-Serif;
}
#footerSlideText {
padding: 15px 10px 25px 25px;
}
Thanks in advance!

if you change your #footerPlacement to include position:relative, you can change #footerSlideContainer to be position:absolute and then your footer will sit below any content above it.
However you will need to make the content have a min-height of around 350px for the footer to work properly and if your content isn't long enough, the footer won't be at the bottom of the browser.
I also added overflow:hidden to #footerSlideContent. I have made a fiddle to demonstrate:
http://jsfiddle.net/tc6b8/