Develop Reference

sticky header smoothing scroll down

I am creating a sticky header and it works fine but my problem is on "jump" when someone scroll down the page jumping some pixels and has no smoothness. I find some similar topics but I can not make it work for my website,
var navbar = document.getElementById("my_header");
var sticky = navbar.offsetTop;
function myFunction() {
if (window.pageYOffset >= sticky) {
navbar.classList.add("sticky")
} else {
navbar.classList.remove("sticky");
}
}
window.onscroll = function() {myFunction()};
.sticky {
position: fixed;
top: 0;
width: 100%;
z-index:999;
padding:18px 0 0 0;
-webkit-transition: all 1.3s;
-moz-transition: all 1.3s;
-ms-transition: all 1.3s;
-o-transition: all 1.3s;
transition: all 1.3s;
opacity: 1;
animation-name: fadeInOpacity;
animation-iteration-count: 1;
animation-timing-function: ease-in;
animation-duration: 0.75s;
}
#keyframes fadeInOpacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
<div id="topnavbar"></div>
<div id="my_header" style="width:1150px; background: #181818;">
<div style="width: 100%;margin: -18px auto 0; padding: 0;">
<div id="header"></div>
</div>
</div>
<div id="content"> ... </div>
you can find the demo at JSFIDDLE too.
my website is oipeirates.tv
Thank you in advance.

Check this This is a ready solution :)

Let's get rid of this unnecessary transitions. Do you want to achieve this effect?
.sticky {
position: fixed;
top: 0;
width: 100%;
z-index:999;
padding:18px 0 0 0;
opacity: 1;
animation-name: fadeInOpacity;
animation-iteration-count: 1;
animation-timing-function: ease-in;
animation-duration: 0.75s;
}
#keyframes fadeInOpacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
http://jsfiddle.net/oipeirates/y41f98dg/39/

Specify what you want to animate, change transition: all 1.3s; to transition: opacity 1.3s;. Now the padding:18px 0 0 0; will not be animated, and the jumping behavior of the sticky header will be prevented.
JSFiddle : http://jsfiddle.net/y41f98dg/54/

i dont have problem to remove the transition or animation i just want to make it smooth with no jumping. but im totally tilted im trying so much days and i cant do this :/

Sliding and fading a div element

I am trying to animate a div element (slide and fade) with a button click. At first, the element is not visible to a user. When the button is clicked, it will slide to right and fade in. Once the button is clicked again, it will slide to left and fade out. I come up with two solutions, with css and with JQuery.
In the first one, I used JQuery. You can find the example in this JSFiddle 1.
HTML
<button id="my-button">Click me!</button>
<div id="my-modal"></div>
CSS
#my-modal {
opacity: 1;
position: fixed;
top: 50px;
left: 0;
left: -250px;
width: 250px;
height: 100%;
background-color: red;
}
JQuery
$("#my-button").click(function () {
var $modal = $("#my-modal");
$modal.stop(true, true).animate({
left: "toggle",
opacity: "toggle"
}, 1000);
});
Here, everything seems working but it does directly opposite of what I want. It first fades out, and with the second click, it fades in. It is because that the opacity of the element is 1, but if I turn it to 0, nothing happens.
Secondly, I tried to do that with css animation by using key-frames (changing opacity from 0 to 1) but it has also problem. It starts the animation exactly the way I want. However, when I click the button again, it disappears immediately. Here is the JSFiddle 2.
HTML
<button id="my-button">Click me!</button>
<div id="my-modal"></div>
CSS
#my-modal {
opacity: 0;
position: fixed;
top: 50px;
left: 0;
left: -250px;
width: 250px;
height: 100%;
background-color: red;
-moz-transition: all 1s ease;
-webkit-transition: all 1s ease;
-o-transition: all 1s ease;
transition: all 1s ease;
}
.move-my-modal {
-moz-transform: translate(250px, 0px);
-webkit-transform: translate(250px, 0px);
-ms-transform: translate(250px, 0px);
-o-transform: translate(250px, 0px);
}
.animate-opacity {
-webkit-animation: toggle-opacity 1s ease;
-moz-animation: toggle-opacity 1s ease;
-o-animation: toggle-opacity 1s ease;
animation: toggle-opacity 1s ease;
-webkit-animation-fill-mode: forwards;
}
#-webkit-keyframes toggle-opacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
#-moz-keyframes toggle-opacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
#-o-keyframes toggle-opacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
#keyframes toggle-opacity {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
JQuery
$("#my-button").click(function () {
var $modal = $("#my-modal");
$modal.toggleClass("move-my-modal");
$modal.toggleClass("animate-opacity");
});
To this end, I have these questions;
1) What are the problems with these two approaches? Is there something that I missed or forgot to use? How can I correct them to meet the requirements that I mentioned at the beginning.
2) Which one is the better way to make this action? Is there any cons or pros of these approaches?
3) Is there any other way to make this action? I am new on this area and I might not notice a simpler way.

You can toggle an .active class to the element and use CSS transitions.
This way, if the browser is old enough to not support animations, it will still work but it won't slow down computers that do not handle animations well.
$("#my-button").click(function () {
$("#my-modal").toggleClass('active');
});
#my-modal.active {
opacity: 1;
left: 0;
}
$("#my-button").click(function () {
$("#my-modal").toggleClass('active');
});
#my-modal {
opacity: 0;
position: fixed;
top: 50px;
left: -250px;
width: 250px;
height: 100%;
background-color: red;
transition: all 1s linear;
}
#my-modal.active {
opacity: 1;
left: 0;
}
<button id="my-button">Click me!</button>
<div id="my-modal"></div>
<!-- jQuery -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

jQuery .hover doesn't loop

I have a codepen here: http://codepen.io/huwrowlands/pen/GgmjqX
HTML:
<div class="site-branding">
<a href="#">
<img alt="Land" class="site-logo site-logo-land" src="http://website-test-lab.com/sites/landchain/wp-content/themes/landchain/assets/img/land.png" />
</a>
</div>
CSS:
/* Basic Styles */
.site-logo {
visibility: hidden;
max-width: 127px;
margin: 0 auto;
display: block;
}
/* Animation CSS */
.slideRight{
animation-name: slideRight;
-webkit-animation-name: slideRight;
animation-duration: 1s;
-webkit-animation-duration: 1s;
animation-timing-function: ease-in-out;
-webkit-animation-timing-function: ease-in-out;
visibility: visible !important;
}
#keyframes slideRight {
0% {
transform: translateX(-150%);
}
50%{
transform: translateX(8%);
}
65%{
transform: translateX(-4%);
}
80%{
transform: translateX(4%);
}
95%{
transform: translateX(-2%);
}
100% {
transform: translateX(0%);
}
}
#-webkit-keyframes slideRight {
0% {
-webkit-transform: translateX(-150%);
}
50%{
-webkit-transform: translateX(8%);
}
65%{
-webkit-transform: translateX(-4%);
}
80%{
-webkit-transform: translateX(4%);
}
95%{
-webkit-transform: translateX(-2%);
}
100% {
-webkit-transform: translateX(0%);
}
}
/**/
.slideRightLeft{
animation-name: slideRightLeft;
-webkit-animation-name: slideRightLeft;
animation-duration: 1s ;
-webkit-animation-duration: 1s;
animation-iteration-count: infinite;
-webkit-iteration-count: infinite;
animation-timing-function: ease-in-out;
-webkit-animation-timing-function: ease-in-out;
visibility: visible !important;
}
#keyframes slideRightLeft {
0% {
transform: translateX(0%);
}
50% {
transform: translate(-50%);
}
100% {
transform: translateX(0%);
}
}
#-webkit-keyframes slideRightLeft {
0% {
-webkit-transform: translateX(0%);
}
50% {
transform: translate(-50%);
}
100% {
-webkit-transform: translateX(0%);
}
}
JS:
//Animations (Delay)
jQuery(function(){
setTimeout(function(){
jQuery('.site-logo-land').addClass("slideRight");
}, 1000);
});
jQuery( ".site-logo" ).hover(function() {
jQuery( this ).addClass( "slideRightLeft" );
});
On page load, the Land logo animates in by adding a class which is controlled by CSS keyframe animations.
I also have a jQuery snippet to add another class to animate he Land logo on hover.
What I require, is that the hover effect to work each time a user hovers over the Land logo. Currently, it only does this once.
Not sure, if this is something to do with my CSS keyframes animation code, or something I need to fix with my jQuery.
Thanks in advance

jQuery hover function doesn't work like the css :hover class where styles are just applied on hover, and removed after mouseout. You need to remove the class on mouseout again:
jQuery( ".site-logo" ).on('mouseout', function() {
jQuery( this ).removeClass( "slideRightLeft" );
});

You should add the following to the .slideRightLeft class:
-webkit-animation: slideRightLeft 1.3s infinite;
animation: slideRightLeft 1.3s infinite;
Check this link for a working demo.
Edit
You can find the implementation using jQuery's animate() function here. Note the added style to the img.
JS
jQuery( ".site-logo" ).hover(function() {
jQuery( this ).animate({
left: "-=50"
}, 1000)
.animate({
left: "+=50"
}, 1000);
});

I'm writing an answer since I cannot comment cause of my low rep (I need at least 50 to do so). But taking the suggestions from Mario A I resolved the issue of the jump on mouseout.
First of all I made some work on your css. I added a transition: 1s transform to the site-logo class, then I removed the keyframe animation for the .slideRightLeft class and added a simple transform: translate(-50%) since with I wasn't able to make the transition work with the keyframe animation. With these changes the text was sliding to the right on hover and if you took off your mouse at any point it would slide back into the original position, but if you left your mouse over the image it would remain at the -50% position until you took your mouse off. Here are the relevant CSS classes:
.site-logo {
max-width: 127px;
margin: 0 auto;
display: block;
transition: 1s transform;
-webkit-transition: 1s -webkit-transform;
}
.slideRightLeft{
transform: translate(-50%);
-webkit-transform: translate(-50%);
}
To resolve that I added a new setTimeout of 1s to your JS and have it remove the slideRightLeftclass, this way if you leave your mouse over the image it would return to the original position within 1s. Also having seen what Mario A had done with the JS I thought it would be simpler to have it all on the .hover function, hence I change the addClass to toggleClass and added the removeClass for the slideRight class on the hover function. Here's the updated JS:
//Animations (Delay)
jQuery(function(){
setTimeout(function(){
jQuery('.site-logo-land').addClass("slideRight");
}, 1000);
});
jQuery( ".site-logo" ).hover(function() {
var curObj = this;
jQuery( this ).toggleClass( "slideRightLeft" );
setTimeout(function(){
jQuery( curObj ).removeClass( "slideRightLeft" );
}, 1000);
jQuery( this ).removeClass( "slideRight" );
});
You can check it out here: http://codepen.io/anon/pen/PwmJRN
Hope I could help!
EDIT
After publishing this I found a bug on the code where if you leave the mouse until the animation finishes and then move it out the animation fires up again, to resolve this I added the following to the JS:
jQuery( ".site-logo" ).on('mouseout', function(){
jQuery( this ).removeClass( "slideRightLeft" );
});
This solves that issue and everything else working as before.

Why not use css:hover selector. You can do something like this:
.site-logo:hover
{
animation-name: slideRightLeft;
-webkit-animation-name: slideRightLeft;
animation-duration: 1s ;
-webkit-animation-duration: 1s;
animation-iteration-count: infinite;
-webkit-iteration-count: infinite;
animation-timing-function: ease-in-out;
-webkit-animation-timing-function: ease-in-out;
visibility: visible !important;
}

CSS animation active doesn't continue?

I've been trying to learn css animations and I'm starting to get a grip on them but I'm having an issue an animation effect. I have an animation class assigned to a section that is a download button when I click it the animation plays for the extent of the click, if i click and hold it plays the whole animation. I want the animation to play all the way through on on click, not a click and hold.
Heres the Html section the class is applied to:
<a href="software/ASC.exe">
<section id="download" class="animated" title="Download ASC">
Download
</section>
</a>
Here is the CSS animation class:
.animated {
}
.animated:active {
-webkit-animation:fadeOutUp 2s;
-moz-animation:fadeOutUp 2s;
-o-animation:fadeOutUp 2s;
-ms-animation:fadeOutUp 2s;
animation:fadeOutUp 2s;
box-shadow:3px 1px 20px 4px #0099CC;
}
#-webkit-keyframes fadeOutUp {
0% {
opacity: 1;
-webkit-transform: translateY(0);
}
100% {
opacity: 0;
-webkit-transform: translateY(-20px);
}
}
#-moz-keyframes fadeOutUp {
0% {
opacity: 1;
-moz-transform: translateY(0);
}
100% {
opacity: 0;
-moz-transform: translateY(-20px);
}
}
#-o-keyframes fadeOutUp {
0% {
opacity: 1;
-o-transform: translateY(0);
}
100% {
opacity: 0;
-o-transform: translateY(-20px);
}
}
#keyframes fadeOutUp {
0% {
opacity: 1;
transform: translateY(0);
}
100% {
opacity: 0;
transform: translateY(-20px);
}
}
.fadeOutUp {
-webkit-animation-name: fadeOutUp;
-moz-animation-name: fadeOutUp;
-o-animation-name: fadeOutUp;
animation-name: fadeOutUp;
}
Any help is appreciated!

HTML
<a href="#" id="buttonLink">
<section id="download" class="animated" title="Download ASC">
Download
</section>
</a>
CSS
.clicked {
-webkit-animation:fadeOutUp 2s;
-moz-animation:fadeOutUp 2s;
-o-animation:fadeOutUp 2s;
-ms-animation:fadeOutUp 2s;
animation:fadeOutUp 2s;
box-shadow:3px 1px 20px 4px #0099CC;
}
JavaScript
var el = document.getElementById('buttonLink');
el.addEventListener('click', function(){
document.getElementById('download').className = 'clicked';
})
DEMO

You could do it with jQuery
DEMO http://jsfiddle.net/kevinPHPkevin/Uj5gC/1/
$("#download").click(function () {
$(this).addClass("animated1");
});
To reset the animation just remove the class after 2 seconds
DEMO http://jsfiddle.net/kevinPHPkevin/Uj5gC/4/
$("#download").click(function () {
$(this).addClass("animated1");
setInterval(function () {
$("#download").removeClass("animated1");
}, 2000);
});
** EDITED**
Just for the challenge, here's a CSS only option using :target
DEMO http://jsfiddle.net/kevinPHPkevin/Uj5gC/2/

A demo that uses javascript to add that 'animated' class. Anyone knows a way to do that from CSS (kinda' impossible though :D)? It'd be interesting. Plunk here http://plnkr.co/edit/IhkmgKQ9Od0dyb3HFuEv?p=preview
window.onload = function() {
var btn = document.getElementById("download");
btn.addEventListener("click", function(e) {
this.className = "animated";
});
}

You can archieve this in pure CSS by using :not(:active) instead of just .active.

CSS Animation onClick

How can I get a CSS Animation to play with a JavaScript onClick? I currently have:
.classname {
-webkit-animation-name: cssAnimation;
-webkit-animation-duration:3s;
-webkit-animation-iteration-count: 1;
-webkit-animation-timing-function: ease;
-webkit-animation-fill-mode: forwards;
}
#-webkit-keyframes cssAnimation {
from {
-webkit-transform: rotate(0deg) scale(1) skew(0deg) translate(100px);
}
to {
-webkit-transform: rotate(0deg) scale(2) skew(0deg) translate(100px);
}
}
How can I apply an onClick?

Are you sure you only display your page on webkit? Here is the code, passed on safari.
The image (id='img') will rotate after button click.
function ani() {
document.getElementById('img').className = 'classname';
}
.classname {
-webkit-animation-name: cssAnimation;
-webkit-animation-duration: 3s;
-webkit-animation-iteration-count: 1;
-webkit-animation-timing-function: ease;
-webkit-animation-fill-mode: forwards;
}
#-webkit-keyframes cssAnimation {
from {
-webkit-transform: rotate(0deg) scale(1) skew(0deg) translate(100px);
}
to {
-webkit-transform: rotate(0deg) scale(2) skew(0deg) translate(100px);
}
}
<input name="" type="button" onclick="ani()" value="Click">
<img id="img" src="https://i.stack.imgur.com/vghKS.png" width="328" height="328" />

You just use the :active pseudo-class. This is set when you click on any element.
.classname:active {
/* animation css */
}

Found solution on css-tricks
const element = document.getElementById('img')
element.classList.remove('classname'); // reset animation
void element.offsetWidth; // trigger reflow
element.classList.add('classname'); // start animation

You can achieve this by binding an onclick listener and then adding the animate class like this:
$('#button').onClick(function(){
$('#target_element').addClass('animate_class_name');
});

CSS ONLY solution that works on every click and plays the animation to the end:
All you have to do is to add the animation to the :focus pseudo class and set it to none in :active pseudo class.
If your element isn't focusable add tabindex="0" attribute to the html element:
#keyframes beat {
0% {
-webkit-transform: scale(1, 1);
transform: scale(1, 1);
}
100% {
-webkit-transform: scale(0.8,0.8);
transform: scale(0.8, 0.8);
}
}
.className {
background-color:#07d;
color: #fff;
font-family: sans-serif;
font-size: 20px;
padding: 20px;
margin:5px;
-webkit-transform: scale(1, 1);
transform: scale(1, 1);
}
.className:focus {
-webkit-animation: beat 1s ease-in-out backwards;
animation: beat 1s ease-in-out backwards;
}
.className:active {
-webkit-animation: none;
animation: none;
}
body {
text-align: center;
}
<h3>Any element with tabindex="0", like a div:</h3>
<div tabindex="0" class="className"> Click me many times!</div>
<h3>Any focusable element like a button:</h3>
<button class="className"> Click me many times!</button>

var abox = document.getElementsByClassName("box")[0];
function allmove(){
abox.classList.remove("move-ltr");
abox.classList.remove("move-ttb");
abox.classList.toggle("move");
}
function ltr(){
abox.classList.remove("move");
abox.classList.remove("move-ttb");
abox.classList.toggle("move-ltr");
}
function ttb(){
abox.classList.remove("move-ltr");
abox.classList.remove("move");
abox.classList.toggle("move-ttb");
}
.box {
width: 100px;
height: 100px;
background: red;
position: relative;
}
.move{
-webkit-animation: moveall 5s;
animation: moveall 5s;
}
.move-ltr{
-webkit-animation: moveltr 5s;
animation: moveltr 5s;
}
.move-ttb{
-webkit-animation: movettb 5s;
animation: movettb 5s;
}
#keyframes moveall {
0% {left: 0px; top: 0px;}
25% {left: 200px; top: 0px;}
50% {left: 200px; top: 200px;}
75% {left: 0px; top: 200px;}
100% {left: 0px; top: 0px;}
}
#keyframes moveltr {
0% { left: 0px; top: 0px;}
50% {left: 200px; top: 0px;}
100% {left: 0px; top: 0px;}
}
#keyframes movettb {
0% {left: 0px; top: 0px;}
50% {top: 200px;left: 0px;}
100% {left: 0px; top: 0px;}
}
<div class="box"></div>
<button onclick="allmove()">click</button>
<button onclick="ltr()">click</button>
<button onclick="ttb()">click</button>

Add a
-webkit-animation-play-state: paused;
to your CSS file, then you can control whether the animation is running or not by using this JS line:
document.getElementById("myDIV").style.WebkitAnimationPlayState = "running";
if you want the animation to run once, every time you click. Remember to set
-webkit-animation-iteration-count: 1;

You can do that by using following code
$('#button_id').on('click', function(){
$('#element_want_to_target').addClass('.animation_class');});

Try this:
<div>
<p onclick="startAnimation()">Start</p><!--O botão para iniciar (start)-->
<div id="animation">Hello!</div> <!--O elemento que você quer animar-->
</div>
<style>
#keyframes animationName {
from {margin-left:-30%;}
}
</style>
<script>
function startAnimation() {
document.getElementById("animation").style.animation = "animationName 2s linear 1";
}
</script>

Add the animation and remove it after the animation-duration ends using setTimeout()
const elem = document.querySelector(".element");
elem.onclick = () => {
elem.style.animation="YOUR_ANIMATION";
setTimeout(()=>{
elem.style.animation="none";
},YOUR_ANIMATION_DURATION);
}