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Issues with $(window).width() and scrolling

I am trying to get this code to only work if the device window is bigger than 960px, and it should only trigger when the window scrolls down 700px. The later part works however the first part does not.
The code works perfectly on where it fades in and then fades out, however I do not want it to do so on mobile devices, because the scroll point (700px) is too far down and is creating issues.
$(function () {
var header = $('.fadein');
$(window).scroll(function () {
var scroll = $(window).scrollTop();
if (($(window).width() < 960) && (scroll >= 700)) {
header.removeClass('.fadein').addClass('.fadeout').fadeIn();
} else {
header.removeClass('.fadeout').fadeOut().addClass('.fadein');
}
});
});

I think your main issue is accidentally using < 960 instead of > 960, but you might also change to checking innerWidth rather than width if you really are interested in the window's width and not just the screen's width.
For this demo I reduced the target values to 500 and 200 to work better in a SO snippet. (Resize your browser window and run the snippet again to see it working above and below the 500px threshold.)
console.log("width: " + $(window).innerWidth() );
$(window).scroll(function () {
const
div = document.getElementById("div"),
scroll = $(window).scrollTop();
if ( ($(window).innerWidth() > 500) && (scroll >= 200) ) {
div.style.backgroundColor = "yellow";
}
else {
div.style.backgroundColor = "white";
}
});
#div{ height: 300vh; border: 1px solid grey; }
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="div"></div>

Did you try to split that if statement ?
For example (second if will fire only if width is at least 960px)
if($(window).width() >= 960) {
if (scroll >= 700) {
header.removeClass('.fadein').addClass('.fadeout').fadeIn();
} else {
header.removeClass('.fadeout').fadeOut().addClass('.fadein');
}
}

Getting pixel amount of Scrolling in an Overflow Hidden Page

I wish to be able to toggle a class for the body when there is a large amount of scroll in the page, but there is a catch: its a full-sized, hidden overflow, single page.
I tried the simple:
if ($(window).scrollTop() > 1000){
$('body').addClass( "endScroll");
}
else {
$('body').removeClass("endScroll");
}
I tried this method to add the class endScroll after the page has been scrolled after 1000 pixels, however, it does not work because since it is a single screen with overflow hidden, there is no actual scroll from top. (To better explain, there is an animation going on while the user scrolls)
So I tried this method:
$(document).bind('mousewheel', function(e) {
var delta = e.originalEvent.wheelDelta;
if (delta < 0) {
$('body').addClass("endScroll");
} else if (delta > 0) {
$('body').removeClass("endScroll");
}
});
While it actually works, adding the class, it does as soon as the user scroll once. I can't figure a way to make it toggle the class after 1000 pixels have been scrolled.
Thank you in advance!

EDIT: I think this is closer to what you're looking for. You need a tracking variable to see how much the user has scrolled:
var scrollVal = 0;
$(document).bind('mousewheel', function(e) {
scrollVal += e.originalEvent.wheelDelta;
if (scrollVal > 0) scrollVal = 0;
console.log(scrollVal);
if (scrollVal < -1000) {
$('body').addClass( "endScroll");
}else {
$('body').removeClass("endScroll");
}
});
EDIT 2: Firefox compatibility:
var scrollVal = 0;
var mousewheelevt=(/Firefox/i.test(navigator.userAgent))? "DOMMouseScroll" : "mousewheel";
$(document).bind(mousewheelevt, function(e) {
var offset = -1 * e.originalEvent.wheelDelta;
if (mousewheelevt == "DOMMouseScroll"){
offset = e.originalEvent.layerY - e.originalEvent.clientY;
}
scrollVal += offset;
if (scrollVal < 0) scrollVal = 0;
console.log(scrollVal);
if (scrollVal > 1000) {
$('body').addClass( "endScroll");
}else {
$('body').removeClass("endScroll");
}
});

Just scroll it to 1000px and see the background will be red if you scroll up it will be again black
$(window).on("scroll", function() {
if($(window).scrollTop() > 1000){
$(".scroll-div").addClass('scroll-div-red');
}
else{
$(".scroll-div").removeClass('scroll-div-red');
}
});
.scroll-div{
background:#000;
height:1500px;
overflow:hidden;
}
.scroll-div-red.scroll-div{
background:red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="scroll-div">
</div>

Firefox adds undesired thin line above a logo animated using JavaScript

Well it seems that I'm having some sort of a problem with Firefox, I've added a logo to my website and styled it through this CSS block:
#splash div.logo > a {
background-image: url("../../---.png");
background-size: 280px;
height: 85px;
width: 280px;
}
When I open the web page with Chrome or any other browser other than Firefox it displays it in the right way,unless I zoomed in it will show a thin line,
while opening the web page from Firefox will show a thin line above the image with or without zooming in.
The Logo is animated through this code:
IndexPage: {
Splash: {
init: function() {
var $splash = $('#splash'),
$logo = $splash.find('#logo'),
frame = 1,
frameCount = 46
framesPerSecond = 50;
function animateLogo() {
var lastTime = 0;
var currTime = new Date().getTime();
// var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var timeToCall = 25;
if (typeof requestAnimationFrame == "undefined")
requestAnimationFrame = function (callback, element) {
return setTimeout(function () { callback(currTime + timeToCall); }, timeToCall);
};
if (frame <= frameCount) {
setTimeout(function() {
requestAnimationFrame(animateLogo, $logo);
$logo.css('background-position', '0 -' + (frame * 85) + 'px');
frame += 1;
}, timeToCall);
// lastTime = currTime + timeToCall;
}
}
$('form.search').on({
close: function() { $splash.removeClass('searching'); },
open: function() { $splash.addClass('searching'); }
});
if ($window.width() >= 532) {
$window.scroll(function() {
var top = $window.scrollTop();
$splash.find('div.logo').css('opacity', top > 150 ? 0 : (150 - top) / 150);
});
}
$window.resize(function() {
if ($splash.width() < 768) {
$logo.css('background-position', '0 0');
} else {
$logo.css('background-position', '0 -3910px');
}
});
if ($window.width() >= 768)
animateLogo();
}
}
}
Any Ideas?

It looks like Firefox does some extrapolation of your image before rendering it (for perf I guess). It calculate the pixel to display using the neighbourhood of the one on your image, and some pixels on the top of your image are near black pixel resulting in a black/grey line.
EDIT: You can disable this behavior using image-rendering: optimizequality; in your CSS.
Snippet to test this:
var frame = 1,
frameCount = 46;
function animateLogo() {
$logo=$('.logo');
var lastTime = 0;
var currTime = new Date().getTime();
var timeToCall = 25;
if (typeof requestAnimationFrame == "undefined") {
requestAnimationFrame = function (callback, element) {
return setTimeout(function () {
callback(currTime + timeToCall);
}, timeToCall);
}
}
if (frame <= frameCount) {
setTimeout(function() {
requestAnimationFrame(animateLogo, $logo);
$logo.css('background-position', '0 -' + (frame * 85) + 'px');
frame += 1;
}, timeToCall);
}
}
.logo {
background-image: url('data:image/png;base64,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AgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAiI7yIOO3MICAgICAiIcSC+3L+xrt6lEwQEBAQEBEQdiL76GzY3iKsMCCWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQQgkllFBCCSWUUEIJJZRQYl+Ig89ZBsS5EkoooYQSSijx4ry/ezNdzQsnCAgICAgIiEoQVW8/BAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBMT2ERcZEEPbNG31iBQlICAgICB2heghICAgICAgICDGhXDzDAICAgICAgICAgICAgICAgICAgICAgICAgICAiINwovxEBAQEBAQEBAjQ/hyHAiIhIgUX4/tRgEEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBMQSEWCuISAgICAgIJIjFoKrDAun6wwIJZRQQgkllEhewk0nCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICIhAiP9lQAwQEBAPEL85xEJAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQARExJgeAgICAgICIjNikmHhBAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQFxIMQwZED0EBAQECERHQQEBATErhAtBAQEBAQEBMR+EA0EBAQEBAQEBAQEBAQEBBOCstYAAArHSURBVAQEBAQEBATEaBAtBAQEBAQEBMR+ED4bEwICAmJnCF9TBAEBERLhi8ohICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBSIcJMBwEBAQEBAZEcYQEIAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAfFGxNBCBEE0EBCOThAQEBAQEBAQEBAQEBCZEC0EBAQEBAQEBAQEBAQEBAQEBAQEBMTOEe6KQ0BAQEBAQEBAQEBAQEBA5EL8dpIA4cs2IbaJ6BIgHGIhICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBSIcJMBwEBAQEBAZEcYQEIAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBsRNEmOkgICAgICAgkiMsACEgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB2gggzHQQEBAQEBERyhAUgBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQExE4QYaaDgICAgICASI6wAISAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIDYCSLMdBAQEBAQEBDJERaAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEDtBhJkOAgICAgICIjnCAhACAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgJiJ4gw00FAQEBAQEAkR1gAQkBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQOwEEWY6CAgICAgIiOQIC0AICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAiInSDCTAcBAQEBAQGRHGEBCAEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAbETRJjpICAgICAgIDIjpsPQVr92goCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIC4n6F//JgWAuJViMX39ekzIG43v3bE4g/VI7oMiAHi8Iib/82ePH9Xhmie/O5ptSFmGRDTx/tDjYgJRBjE8AJideyaPvW4KIjFL99qzG7/elFmunYqaZf/KpLiOcT09jC1+OUOMV1b565+Gxlxt3MsgtwhZssz+vK7goZH3J/87veJyWqZO60WMV0tc2e1IBZPpNsn1S1isa4a7oCLXT8+4m6X7u4Rw+1fDPeH2lno88QCMbn9aK8j7h92u9NPQp+x1xHtErF2uJoEOrq+jLh9Yg3NCtEtfz+J9tMenlrF3n/M7z7k07WTxbe9JDpisRO8hJhUgBhWiJuP+XT1FFoeUStA3F5j3x18hn62fAqtEM0CEXfHvl9WrK3ymk1EXwGieQ7R3yOaaK9pvHAHcLZcbU/X8twh+tCIdoWYLu/f3CKW06/xYiLW74pPVtdxm4hQihden3geMfmhn1Gw+1XsQ0TzNKIZYl9jF5W4vUDqakA82rEf7ASz0DcKmgeH2GcRC0UliP5ZxDOvAoRDPDxjbzx7qkDcrJCGtQXgxrNnVgPiZh3+1Cp27V92VSCeuJ5YzaQGxKMru41nTxWIm7944vK0NkT/4G7Hxi5QA+LxfaeNV/NqQDy+jXm/HGzvbv3VcHSarZ5Dy9uYt8fbG0RXy3li4674cPcsaxf/1XHG3nh9YrEeXCzPF/+bVrAA3Hy5a3p/FT4Zgr/IskJ0jxCTx4j41xNPvHp6/yLX5Ad/EODeEE+8jj1d3Ziq5Bp7+cdvvy5XHLMHr2NHvNtRMqv9INZP1fYJ7xAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBAQEBABEWGmhYCAgICAgEiG+D/PDx7oyy0cAgAAAABJRU5ErkJggg==');
background-size: 280px;
height: 85px;
width: 280px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="logo"></div>
<button onclick="frame=0;$('.logo').css('image-rendering','auto');animateLogo()">Without CSS property (default)</button>
<button onclick="frame=0;$('.logo').css('image-rendering','optimizeQuality');animateLogo()">With CSS property</button>
Old answer:
You can separate sprites on your image by a few transparent pixels (or of the color of what is behind your logo) so the effect would not be visible anymore.

Well, if all else fails, you could always attempt to place a div over the thin line. Also try adding a border attribute to your code and set it to 0px solid whatever your background-color is. If all of these don't work, then try adding another border over the red line.

Try loading the image as is in the browser and check if the line is still placed. Also, in Firefox, right-click, choose inspect and see where it points to. For example, the line might be coming from div or some other html element.

i think creating an empty 'content' and using a background to show the image: works nicely in Chrome, Firefox, Safari and IE8+9
.googlePic:before {
content: '';
background: url('../../img/googlePlusIcon.PNG');
margin-top: -6.5%;
padding-right: 53px;
float:right;
height: 19px;
}
you could try if this would fix the issue

I think it just renders the size of image or block incorrectly, I played on your website with the CSS and and it seems that if you change background size to
background-size: 279.8px auto;
it solves the issue.
UPDATE:
As an additional solution, you might wrap the logo in a div, give the div hidden overflow, and then lift the block with your image up to 1px. It will hide the line as well.

Try like this:
#match div.logo > a {
background-image: url("../../---.png");
background-size: 280px;
height: 85px;
width: 280px;
outline: 0;
}

codepen: jQuery .css() edit when scrolldown past anchor, vice versa

codepen http://codepen.io/mathiasvanderbrempt/pen/mJjjrx
I need to figure out why this jquery isn't working...
I want to make the .navigationfx drop down (top = 0px) when its scrolltop() reaches the first section (should I add a class or id?). Accordingly, I want to make it move up (top = -30px) when it scrolls back up past it.
$(function(){
//last scroll will always save the current scroll position value
var CurrentScroll = 0;
$(window).scroll(function(event){
var NextScroll = $(this).scrollTop();
if (NextScroll > CurrentScroll){
//codes related to down-ward scrolling here
if ($(window).scrollTop() > $('section').scrollTop())
{
$('navigationfx').css('top', '0px')
}
else {
$('navigationfx').css('top', '-100px')
}
}
else {
//codes related to upward-scrolling here
if ($(window).scrollTop() < $('section').scrollTop())
{
$('navigationfx').css('top', '-100px')
}
else {
$('navigationfx').css('top', '0px')
}
}
//Updates current scroll position
CurrentScroll = NextScroll;
});
});
css
.navigationfx {
visibility: ;
position: fixed;
z-index: 2;
margin: 0 auto;
padding: 5px 0 0 0;
width: 100%;
top: -50px;
left: 0;
background: rgba(250,250,250,0.5);
text-align: center;
color: #333;
border-bottom: 1px solid #dddedf
}

Few things:
You select the first section form the matched set as:
$('section').first();
Since, the section has no scroll, you would have to use the offset top as:
$('section').first().offset().top;
Do not scan the DOM over and over for the same element. Store a reference and use it as you need as:
var $nav = $(".navigationfx");
var $firstSection = $('section').first();
Not sure if this is what you wanted, but, here is your pen updated
P.S. It's okay to use .css() to add/update top for this specific scenario and doesn't have to be add/remove a class.

Because $('section').scrollTop() permanently equal 0.
Change it to $("section").offset().top.
http://codepen.io/anon/pen/jPpeKv

When you log $('section').scrollTop() to the console, you'll see that it always returns zero. Instead, use $('section').offset().top.
You are also missing a . in the navigationfx selector.
$(function(){
//last scroll will always save the current scroll position value
var CurrentScroll = 0;
$(window).scroll(function(event){
var NextScroll = $(this).scrollTop();
if (NextScroll > CurrentScroll){
//codes related to down-ward scrolling here
if($(window).scrollTop() > $('section').offset().top)
{
$('.navigationfx').css('top', '0px')
}
else {
$('.navigationfx').css('top', '-100px')
}
}
else {
//codes related to upward-scrolling here
if($(window).scrollTop() < $('section').offset().top)
{
$('.navigationfx').css('top', '-100px')
}
else {
$('.navigationfx').css('top', '0px')
}
}
//Updates current scroll position
CurrentScroll = NextScroll;
});
});

$('navigationfx') => $('.navigationfx')
and I think all this code can be shorten to that:
$(function(){
$(window).scroll(function(event){
var offset = $(window).scrollTop() > $('section').offset().top?'0px':'-100px';
$('.navigationfx').css('top', offset);
});
$(window).scroll();
});
codepen: http://codepen.io/anon/pen/YXjJLG

Fixed Element on scroll issue

So, I'm trying to reproduce the main scrolling effect on this beautiful portfolio: http://melaniedaveid.com/
I've followed this tutorial on Codyhouse: http://codyhouse.co/gem/fixed-background-effect/
And came up with the following Javascript function.
$(window).scroll(function(){
var scrollTop = $(window).scrollTop(),
windowHeight = $(window).height(),
contentright1 = document.getElementById('contentright1');
function checkScroll(id) {
var offset = scrollTop - $(id).offset().top;
if (offset >= 0 && offset < windowHeight) {
$(id).addClass('fixed_content');
if ((scrollTop/2) <= windowHeight) {
$(id).removeClass('fixed_content');
}
}
else {
$(id).removeClass('fixed_content');
}
};
checkScroll(contentright1);
The fidex_content class apply the following CSS:
.fixed_content {
position: fixed;
top:0; }
As you can see, my main problem is that I can't manage to remove this class when I go back to the position of the element in the first place.