So, it is possible to have reverse animation on mouse out such as:
.class{
transform: rotate(0deg);
}
.class:hover{
transform: rotate(360deg);
}
but, when using #keyframes animation, I couldn't get it to work, e.g:
.class{
animation-name: out;
animation-duration:2s;
}
.class:hover{
animation-name: in;
animation-duration:5s;
animation-iteration-count:infinite;
}
#keyframe in{
to {transform: rotate(360deg);}
}
#keyframe out{
to {transform: rotate(0deg);}
}
What is the optimal solution, knowing that I'd need iterations and animation itself?
http://jsfiddle.net/khalednabil/eWzBm/
I think that if you have a to, you must use a from.
I would think of something like :
#keyframe in {
from: transform: rotate(0deg);
to: transform: rotate(360deg);
}
#keyframe out {
from: transform: rotate(360deg);
to: transform: rotate(0deg);
}
Of course must have checked it already, but I found strange that you only use the transform property since CSS3 is not fully implemented everywhere. Maybe it would work better with the following considerations :
Chrome uses #-webkit-keyframes, no particuliar version needed
Safari uses #-webkit-keyframes since version 5+
Firefox uses #keyframes since version 16 (v5-15 used #-moz-keyframes)
Opera uses #-webkit-keyframes version 15-22 (only v12 used #-o-keyframes)
Internet Explorer uses #keyframes since version 10+
EDIT :
I came up with that fiddle :
http://jsfiddle.net/JjHNG/35/
Using minimal code. Is it approaching what you were expecting ?
Its much easier than all this: Simply transition the same property on your element
.earth { width: 0.92%; transition: width 1s; }
.earth:hover { width: 50%; transition: width 1s; }
https://codepen.io/lafland/pen/MoEaoG
I don't think this is achievable using only CSS animations. I am assuming that CSS transitions do not fulfil your use case, because (for example) you want to chain two animations together, use multiple stops, iterations, or in some other way exploit the additional power animations grant you.
I've not found any way to trigger a CSS animation specifically on mouse-out without using JavaScript to attach "over" and "out" classes. Although you can use the base CSS declaration trigger an animation when the :hover ends, that same animation will then run on page load. Using "over" and "out" classes you can split the definition into the base (load) declaration and the two animation-trigger declarations.
The CSS for this solution would be:
.class {
/* base element declaration */
}
.class.out {
animation-name: out;
animation-duration:2s;
}
.class.over {
animation-name: in;
animation-duration:5s;
animation-iteration-count:infinite;
}
#keyframes in {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
#keyframes out {
from {
transform: rotate(360deg);
}
to {
transform: rotate(0deg);
}
}
And using JavaScript (jQuery syntax) to bind the classes to the events:
$(".class").hover(
function () {
$(this).removeClass('out').addClass('over');
},
function () {
$(this).removeClass('over').addClass('out');
}
);
Creating a reversed animation is kind of overkill to a simple problem. What you need is:
animation-direction: reverse
However, this won't work on its own because animation spec forgot to add a way to restart the animation, so here is how you do it with the help of JS
let item = document.querySelector('.item')
// play normal
item.addEventListener('mouseover', () => {
item.classList.add('active')
})
// play in reverse
item.addEventListener('mouseout', () => {
item.style.opacity = 0 // avoid showing the init style while switching the 'active' class
item.classList.add('in-active')
item.classList.remove('active')
// force dom update
setTimeout(() => {
item.classList.add('active')
item.style.opacity = ''
}, 5)
item.addEventListener('animationend', onanimationend)
})
function onanimationend() {
item.classList.remove('active', 'in-active')
item.removeEventListener('animationend', onanimationend)
}
#keyframes spin {
0% {
transform: rotateY(0deg);
}
100% {
transform: rotateY(180deg);
}
}
div {
background: black;
padding: 1rem;
display: inline-block;
}
.item {
/* because span cant be animated */
display: block;
color: yellow;
font-size: 2rem;
}
.item.active {
animation: spin 1s forwards;
animation-timing-function: ease-in-out;
}
.item.in-active {
animation-direction: reverse;
}
<div>
<span class="item">ABC</span>
</div>
we can use requestAnimationFrame to reset animation and reverse it when browser paints in next frame.
Also use onmouseenter and onmouseout event handlers to reverse animation direction
As per
Any rAFs queued in your event handlers will be executed in the same
frame. Any rAFs queued in a rAF will be executed in the next frame.
function fn(el, isEnter) {
el.className = "";
requestAnimationFrame(() => {
requestAnimationFrame(() => {
el.className = isEnter? "in": "out";
});
});
}
.in{
animation: k 1s forwards;
}
.out{
animation: k 1s forwards;
animation-direction: reverse;
}
#keyframes k
{
from {transform: rotate(0deg);}
to {transform: rotate(360deg);}
}
<div style="width:100px; height:100px; background-color:red"
onmouseenter="fn(this, true)"
onmouseleave="fn(this, false)"
></div>
Would you be better off having just the one animation, but having it reverse?
animation-direction: reverse
Using transform in combination with transition works flawlessly for me:
.ani-grow {
-webkit-transition: all 0.5s ease;
-moz-transition: all 0.5s ease;
-o-transition: all 0.5s ease;
-ms-transition: all 0.5s ease;
transition: all 0.5s ease;
}
.ani-grow:hover {
transform: scale(1.01);
}
I've put together a CodePen with a CSS-only fix and one with 2 lines of jQuery to fix the on-page load issue. Continue reading to understand the 2 solutions in a simpler version.
https://codepen.io/MateoStabio/pen/jOVvwrM
If you are searching how to do this with CSS only, Xaltar's answer is simple, straightforward, and is the correct solution. The only downside is that the animation for the mouse out will play when the page loads. This happens because to make this work, you style your element with the OUT animation and the :hover with the IN animation.
svg path{
animation: animateLogoOut 1s;
}
svg:hover path{
animation: animateLogoIn 1s;
}
#keyframes animateLogoIn {
from {stroke-dashoffset: -510px;}
to {stroke-dashoffset: 0px;}
}
#keyframes animateLogoOut {
from {stroke-dashoffset: 0px;}
to {stroke-dashoffset: -510px;}
}
Some people found this solution to be useless as it played on page load. For me, this was the perfect solution. But I made a Codepen with both solutions as I will probably need them in the near future.
If you do not want the CSS animation on page load, you will need to use a tiny little script of JS that styles the element with the OUT animation only after the element has been hovered for the first time. We will do this by adding a class of .wasHovered to the element and style the added class with the OUT Animation.
jQuery:
$("svg").mouseout(function() {
$(this).addClass("wasHovered");
});
CSS:
svg path{
}
svg.wasHovered path{
animation: animateLogoOut 1s;
}
svg:hover path{
animation: animateLogoIn 1s;
}
#keyframes animateLogoIn {
from {stroke-dashoffset: -510px;}
to {stroke-dashoffset: 0px;}
}
#keyframes animateLogoOut {
from {stroke-dashoffset: 0px;}
to {stroke-dashoffset: -510px;}
}
And voila! You can find all of this and more on my codepen showing in detail the 2 options with an SVG logo hover animation.
https://codepen.io/MateoStabio/pen/jOVvwrM
Have tried several solutions here, nothing worked flawlessly; then Searched the web a bit more, to find GSAP at https://greensock.com/ (subject to license, but it's pretty permissive); once you reference the lib ...
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.2.4/gsap.min.js"></script>
... you can go:
var el = document.getElementById('divID');
// create a timeline for this element in paused state
var tl = new TimelineMax({paused: true});
// create your tween of the timeline in a variable
tl
.set(el,{willChange:"transform"})
.to(el, 1, {transform:"rotate(60deg)", ease:Power1.easeInOut});
// store the tween timeline in the javascript DOM node
el.animation = tl;
//create the event handler
$(el).on("mouseenter",function(){
//this.style.willChange = 'transform';
this.animation.play();
}).on("mouseleave",function(){
//this.style.willChange = 'auto';
this.animation.reverse();
});
And it will work flawlessly.
Try this:
#keyframe in {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
#keyframe out {
from {
transform: rotate(360deg);
}
to {
transform: rotate(0deg);
}
}
supported in Firefox 5+, IE 10+, Chrome, Safari 4+, Opera 12+
I need to run two CSS3 animations on a button element (ideally in pure CSS, semi-ideally in cross-browser, vanilla JS) for a web mobile application of mine.
The first is a bulge-out-and-in animation; it's to play when the button element loads.
The second is a spinning animation applied on the button element; it's to play when the button is tapped.
Know that tapping the button causes the page to refresh. So the idea is that the user would see the button spin after tapping it, and then have it bulge-out-and-in (exactly once) after the page reloads.
However the behaviour is erratic. Ergo, I'm seeing the bulge animation fire multiple times (in succession).
If I exaggerate this bulge-out, it seems to only play once, but there's a visible shiver in the button before it plays (almost as if the animation is firing and aborting midway multiple times).
I can't tell why this is happening. Can you help me accomplish this cleaninly without shenanigans?
button.refresh:focus {
-webkit-animation: rotation 0.5s 20 linear;
}
#-webkit-keyframes rotation {
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(359deg);
}
}
#keyframes bulge {
0% {
transform: scale( 1);
}
20% {
transform: scale( 1.1);
}
100% {
transform: scale( 1);
}
}
.load {
-webkit-animation: bulge 0.5s 1;
}
<form method="POST" action="/">
<button class="refresh load" style="background-image: url('{{ static_url }}img/refresh.png')" type="submit" name="rf" value="1"> </button>
</form>
p.s. ignore the {{ }} type syntax - that's a Django framework thing.
Fiddle here: https://jsfiddle.net/gkzqLfxa/1/
I'm trying to chain CSS animations such that I can write generic animations that don't need to have prior knowledge of the values that happened before them.
For example:
MyDiv has an animation that animates its opacity from 0 to SomeValue. Then a second animation fades out, from SomeValue to 0. Currently, I have to write an animation to fade in to 0.5, then another animation that fades out from 0.5 to 0.
I attempted to do this by not putting in the opacity property in the 0% keyframe, like so:
#keyframes fadeinhalf
{
0% { opacity: 0; }
100% { opacity: 0.5; }
}
#keyframes fadeinfull
{
0% { opacity: 0; }
100% { opacity: 1; }
}
#keyframes fadeout
{
0% {
}
100%{
opacity: 0;
}
}
However, when I run this, with fadeinhalf first, then fadeout second, there is a hitch at the 0% keyframe of fadeout where it goes back to opacity: 1;.
I would rather have something where I can write that first animation custom, but the fade out animation could be generic, and fade out from any opacity to 0. Is this possible?
-webkit-animation-fill-mode: forwards;
will retain the state of the final keyframe, though I've not used it for this exact application…
EDIT: possible alternative solution
You may need to use the jQuery Keyframes library (http://keyframes.github.io/jQuery.Keyframes/)
and do something like:
var supportedFlag = $.keyframe.isSupported();
var setOpacity = 0.5;
function setKeyFrame(data) {
var setOpacity = data;
$.keyframe.define([{
name: 'magic',
'0%': {'opacity': 0},
'100%': {'opacity': setOpacity}
}]);
};
$(document).ready(function() {
setKeyFrame(1);
$('#target-element').playKeyframe(
'magic 1s linear 0s infinite normal forwards',
complete
);
});
Here is the css I'm using for the horizontal movement.
.hfloating
{
animation-name: hfloating;
-webkit-animation-name: hfloating;
animation-duration: 30s;
-webkit-animation-duration: 30s;
animation-iteration-count: infinite;
-webkit-animation-iteration-count: infinite;
}
#keyframes hfloating {
0% {
transform: translateX(-160%);
}
50% {
transform: translateX(170%);
webkit-transform: translateX(170%);
}
100% {
transform: translateX(-160%);
}
}
#-webkit-keyframes hfloating {
0% {
-webkit-transform: translateX(-160%);
}
50% {
-webkit-transform: translateX(170%);
-webkit-transform: translateX(170%);
}
100% {
-webkit-transform: translateX(-160%);
}
}}
Q.Can the .gif file start animating after the page loads?
unfortunately, it cannot be done with css because css is not a programming language, it is just a styling markup.
you have to use JavaScript to achieve the desired result. what you would want to do basically, is just attach the class name to your element after the page is loaded.
to do so, you need to follow the next steps:
you do not set a class to your element, but rather an ID so you can find it later
style your element as the first frame of your animation so it would not be just stuck on the screen
wait till page fully loads
attach the class to your element and it will make it run the animations
here is an example (src links are for jsfiddle):
html:
<div id="test_floater"></div>
<iframe src="/three"></iframe>
<iframe src="/three"></iframe>
<iframe src="/three"></iframe>
<iframe src="/three"></iframe>
Addition to your css:
#test_floater {
-webkit-transform: translateX(-160%);
}
JavaScript
window.onload = function () {
var floater_temp= document.getElementById("test_floater");
floater_temp.className = floater_temp.className + " hfloating";
}
-- window.onload executes after asynchronous content like iframe content is loaded, unlike document.onload that runs after the DOM is loaded.
live example: Fiddle
Why can't I repeat a CSS animation with javascript once?
Fiddle: http://jsfiddle.net/6XtSa/
Here's an example adapted from a deleted answer that suggested using classes. That answer didn't quite get the animation right because it ran infinitely.
The idea is to add the class on click and remove it when the animationend event fires:
#-webkit-keyframes rotate {
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
}
}
#button.animating {
-webkit-animation-name: rotate;
-webkit-animation-timing-function: linear;
-webkit-animation-duration: 1s;
}
var btn = document.getElementById('button');
btn.addEventListener('click', function() {
this.className = 'animating';
});
btn.addEventListener('webkitAnimationEnd', function(){
this.className = '';
});
http://jsfiddle.net/AndyE/9LYAT/
The reason the button is only rotating once is because it's rotating to and not by 360°. It's an absolute value. To rotate again you would have to rotate from 360° to 720°. You may want to have a look at this post: Rotating a Div Element in jQuery
and specifically this jsfiddle in one of the answers: http://jsfiddle.net/uLrVy/
You can try something like this: http://jsfiddle.net/6tZd3/
According to the Safari CSS Visual Effects Guide you can just listen to webkitTranstionEnd event to be notified that the animation has finished. At that point you can reset your animation without animating with JavaScript.