issue with line through animation - javascript

I want to create a simple line through animation and so far I'm here:
.strikethrough {
display: inline-block;
position: relative;
line-height: 1.5em;
}
.strikethrough:after {
content: '';
position: absolute;
display: block;
width: 100%;
height: 1px;
box-shadow: 0 1px rgba(252, 3, 3,0.7);
margin-top: -0.7em;
background: rgba(252, 3, 3,0.8);
transform-origin: center left;
animation: strikethrough 1s 0.5s cubic-bezier(.55, 0, .1, 1) 1;
}
#keyframes strikethrough {
from {
transform: scaleX(0);
}
to {
transform: scaleX(1);
}
}
<span class="strikethrough">Favor packaging over toy</span>
As you see everything works fine except two things:
Now we can see the line at first then it hides and starts the animation, I want to see only the animated line.
I want to initiate the animation using javascript... but with this pseudo-element (after) it seems complicated!

You can fix your animation using animation-fill-mode:
animation-fill-mode: backwards;
To trigger your animation, just add the strikethrough class. The thing where I think this won't work is when you have a multiline text, as your ::after won't cover that.
document.querySelector( '.strikethrough' ).addEventListener( 'click', event => { event.target.classList.toggle( 'strikethrough' ); });
.strikethrough {
display: inline-block;
position: relative;
line-height: 1.5em;
}
.strikethrough:after {
content: '';
position: absolute;
display: block;
width: 100%;
height: 1px;
box-shadow: 0 1px rgba(252, 3, 3,0.7);
margin-top: -0.7em;
background: rgba(252, 3, 3,0.8);
transform-origin: center left;
animation: strikethrough 1s 0.5s cubic-bezier(.55, 0, .1, 1) 1;
animation-fill-mode: backwards;
}
#keyframes strikethrough {
from {
transform: scaleX(0);
}
to {
transform: scaleX(1);
}
}
<span class="strikethrough">Favor packaging over toy</span>
Personally, I would take this simpler tack to reduce the amount of actual objects on screen, and the amount of code, by using a background image to scale. If cleverly set up, you could even multi-line this (by making the background the line height and having a middle pixel in it - and with SVGs you could ensure it was only 1px regardless of the stretching etc...).
document.querySelector( 'p' ).addEventListener( 'click', event => {
event.target.classList.toggle( 'strikethrough' );
})
#keyframes stretch {
to { background-size: 100% var(--line-height); }
}
:root {
--line-height: 1.2em;
}
p {
line-height: var(--line-height);
}
.strikethrough {
line-height: 1.2em;
background: url('data:image/svg+xml;charset=utf8,<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none"><line x1="0" y1="50%" x2="100%" y2="50%" stroke="black" stroke-width="1px" /></svg>') repeat-y 0 0 / 0 var(--line-height);
animation: stretch 4s;
animation-fill-mode: forwards;
}
<p>Hello World!<br />Another line, does it work?</p>

Related

How to prevent a rotated div from moving when changing its width?

I have a reproduction of the issue I'm facing below:
.rect {
transform: rotateZ(45deg);
background-color: #ddd;
position: absolute;
width: 300px;
height: 200px;
animation: 3s linear 0s infinite normal none running widen;
}
#keyframes widen {
from { width: 300px; }
to { width: 500px; }
}
<div class="rect"></div>
Notice how as the rectangle gets wider, its position also changes. It is true that the element's programmatic position isn't changing, but visually on the screen it appears it is.
I am only looking to widen it without having it visually appear to move. That is, the right side of the rectangle should simply extrude out an additional 200 pixels. Is this possible?
Looking around, it seems like setting the transform-origin from center to top left accomplishes this effect, but unfortunately my rectangle's origin of rotation is around its center. Perhaps the solution is to temporarily set it in some way while the effect is occurring..
An easy way to do this is to wrap the grey rectangle div in another div that does the rotating. That way the width and rotation can be controlled independently.
If other transformations need to be applied as well, this approach gives you control over the order the transformations will be applied.
.rect {
transform: rotateZ(45deg);
}
.widen {
background-color: #ddd;
width: 300px;
height: 200px;
animation: 3s linear 0s infinite normal none running widen;
}
#keyframes widen {
from {
width: 300px;
}
to {
width: 500px;
}
}
<div class="rect">
<div class="widen" />
</div>
That squish effect is expected, but for this scenario I'd suggest not animating the size properties anyway since it's going to push your natural DOM flow around with if there's other elements. Instead try scale transform, see below.
.rect {
transform: rotate(45deg);
background-color: #ddd;
position: absolute;
width: 300px;
height: 200px;
transform-origin: center left;
animation: 3s linear widen infinite;
}
/*
#keyframes widen {
from { width: 300px; }
to { width: 500px; }
}
*/
#keyframes widen {
to { transform: rotate(45deg) scaleX(2);
}
<div class="rect"></div>
It looks like it is moving because of the angle. If you want it to grow proportionally, add height to the animation.
Example 1:
.rect {
transform: rotateZ(45deg);
background-color: #ddd;
position: relative;
width: 300px;
height: 200px;
animation: 3s linear 0s infinite normal none running widen;
}
#keyframes widen {
from { width: 300px; height: 200px; }
to { width: 500px; height: 400px; }
}
<div class="rect"></div>
If we remove the rotation, it won't look like it is moving.
Example 2:
.rect {
background-color: #ddd;
position: relative;
width: 300px;
height: 200px;
animation: 3s linear 0s infinite normal none running widen;
}
#keyframes widen {
from { width: 300px; }
to { width: 500px; }
}
<div class="rect"></div>

Image won't stay visible for hover effect

Hello and thank you in advance for reading my question.
GOAL: Set image so that once it's scrolled into view it transitions smoothly into a set position - but still reacts to :hover. Using #keyframes and a little JavaScript, I set the image to opacity: 0 and it's final opacity to opacity: .85. Then I added a hover effect in CSS to make it's opacity: 1
The issue is once it's finished with it's transition - it disappears - reverting to it's original opacity which is zero. I managed to make it freeze at .85 with animation-fill-mode: forwards, rather than animation-fill-mode: none, but then it won't respond to :hover
And here's a test snippet of the problem in action:
let observer_img = new IntersectionObserver(updates => {
updates.forEach(update => {
if (update.isIntersecting) {
update.target.classList.add('shift_frame_center_img');
} else {
update.target.classList.remove('shift_frame_center_img');
}
});
}, { threshold: 0 });
[...document.querySelectorAll('.features-img-wrapper img')].forEach(element => observer_img.observe(element));
body {
width: 100%;
height: 100vh;
background-color: lightgrey;
}
/* CHILD */
.features-img-wrapper img {
width: 10rem;
display: block;
margin-left: auto;
margin-right: auto;
margin-top: 8rem;
opacity: 0;
transition: all .5s;
}
/* APPEND-CHILD */
.shift_frame_center_img {
animation: center_img 1s 0.5s none;
}
/* CHILD ON HOVER */
.features-img-wrapper img:hover {
opacity: 1;
transform: scale(1.035);
}
/* KEYFRAMES */
#keyframes center_img {
0% {
transform: translateY(20rem);
}
100% {
transform: translateY(0);
opacity: .85;
}
}
<body>
<div class="features-img-wrapper">
<img src="https://synapse.it/wp-content/uploads/2020/12/test.png">
</div>
</body>
If I could get a hand with this that would be wonderful, I'm a bit of a beginner and have already spent a few hours on this, all feedback welcome. Thank you very much.
Solution 1
To understand why the hover effect was not working with the animation-fill-mode: forwards, read this answer.
You can fix that by adding !important property to the hover styles:
.features-img-wrapper img:hover {
opacity: 1 !important;
transform: scale(1.035) !important;
}
The problem, in this case, is that the transition will not work for hover.
Solution 2
You could remove the animation entirely and add the final state styles to the shift_frame_center_img class.
But you would still need to use the !important property because of the CSS Specificity.
let observer_img = new IntersectionObserver(updates => {
updates.forEach(update => {
if (update.isIntersecting) {
update.target.classList.add('shift_frame_center_img');
} else {
update.target.classList.remove('shift_frame_center_img');
}
});
}, { threshold: 0 });
[...document.querySelectorAll('.features-img-wrapper img')].forEach(element => observer_img.observe(element));
body {
width: 100%;
height: 100vh;
background-color: lightgrey;
}
/* CHILD */
.features-img-wrapper img {
width: 10rem;
transform: translateY(20rem);
display: block;
margin-left: auto;
margin-right: auto;
margin-top: 8rem;
opacity: 0;
transition: all .5s;
}
/* APPEND-CHILD */
.shift_frame_center_img {
transform: none !important;
opacity: .85 !important;
}
/* CHILD ON HOVER */
.features-img-wrapper img:hover {
opacity: 1 !important;
transform: scale(1.035) !important;
}
<body>
<div class="features-img-wrapper">
<img src="https://synapse.it/wp-content/uploads/2020/12/test.png">
</div>
</body>
This snippet removes the need for fill-mode forwards by setting the img to have opacity 1 as its initial state so it will revert to that at the end of the animation.
The animation itself is altered to take 1.5s rather than 1s with the first third simply setting the img opacity to 0 so it can't be seen. This gives the delay effect.
let observer_img = new IntersectionObserver(updates => {
updates.forEach(update => {
if (update.isIntersecting) {
update.target.classList.add('shift_frame_center_img');
} else {
update.target.classList.remove('shift_frame_center_img');
}
});
}, { threshold: 0 });
[...document.querySelectorAll('.features-img-wrapper img')].forEach(element => observer_img.observe(element));
body {
width: 100%;
height: 100vh;
background-color: lightgrey;
}
/* CHILD */
.features-img-wrapper img {
width: 10rem;
display: block;
margin-left: auto;
margin-right: auto;
margin-top: 8rem;
opacity: 0;
transition: all .5s;
opacity: 1;
}
/* APPEND-CHILD */
.features-img-wrapper img {
animation: center_img 1.5s 0s none;
}
/* CHILD ON HOVER */
.shift_frame_center_img:hover {
opacity: 1;
transform: translateY(0) scale(1.035);
}
/* KEYFRAMES */
#keyframes center_img {
0% {
transform: translateY(20rem) scale(1);
opacity: 0;
}
33.33% {
transform: translateY(20rem) scale(1);
opacity: 0;
}
100% {
transform: translateY(0) scale(1);
opacity: .85;
}
}
<body>
<div class="features-img-wrapper">
<img src="https://synapse.it/wp-content/uploads/2020/12/test.png">
</div>
</body>
Note: as each transform setting will reset anything that isn't included both tranlateY and scale are included in each setting.
Outside the SO snippet system it was possible to leave the animation settings untouched by chaining another animation to the front which ran for 0.5s and just set the img to opacity: 0. This did not work in the snippet system (it got into a loop of flashing on and off) hence the introduction of one but extended animation.

Is there any way to animate transform-origin in combination with transform: scale?

So I have an image viewer which has a zoom functionality, which works via the transform: scale() property.
Animating the zoom is no problem with transition: transform .3s.
To make the zoom on the mousewheel go to where the mousewheel is pointed, I calculated the correct position to set the new origin, but when I set it, it just jumps there with no animation.
What I have tried:
Setting transition for the transform-origin property → Doesn't work
Doing it manually in JS with setTimeout and slowly setting the transform-origin at the right position → plays the zoom animation and then jumps
Is there any way to animate both transform: scale() and transform-origin in one go?
Dupe
As the last question has been closed as a duplicate of How to have multiple CSS transitions on an element?, here is a snippet, to show you that this is not my question.
const img = document.querySelector('#container img');
let on = true;
const toggleEffect = () => {
if(on) {
img.style.transform = 'scale(2.5)';
img.style.transformOrigin = '80% 80%';
} else {
img.style.transform = 'scale(1.4)';
img.style.transformOrigin = '20% 20%';
}
on = !on;
};
#container {
width: 500px;
height: 300px;
overflow: hidden;
background-color: red;
}
#container img {
height: 100%;
width: 100%;
object-fit: contain;
transform: scale(1.4);
transform-origin: 20% 20%;
transition: transform .3s, transform-origin .3s;
}
<div id="container">
<img src="https://images.unsplash.com/photo-1482066490729-6f26115b60dc?ixlib=rb-1.2.1&auto=format&fit=crop&w=2004&q=80"/>
</div>
<button onclick="toggleEffect()">Toggle</button>
EDIT: Technically this is a duplicated. (Chrome Bug in some versions)
- Using both transition:
body, div {
width: 100%;
height: 100vh;
overflow: hidden;
}
div {
background-color: gray;
width: auto;
display: flex;
justify-content: center;
align-items: center;
font-size: 30px;
transform: scale(1.1);
transform-origin: 50% -30px -100px;
transition: transform-origin .2s ease-in-out, transform 4s ease-in-out;
}
div:hover {
transform: scale(1.7);
transform-origin: 100px 100px;
}
<div>Test</div>
- Using animation with#keyframes:
body,div {
width: 100%;
height: 100vh;
}
div {
width: auto;
display: flex;
justify-content: center;
align-items: center;
transform-origin: 0 0 0;
animation: scale-origin 3s infinite;
font-size: 30px;
}
#keyframes scale-origin {
0% {
transform: scale(.5);
transform-origin: 100px 100px 1000px;
}
100% {
transform: scale(1.1);
transform-origin: left 500px -30px
}
}
<div>Test</div>
For me the only way to get around this bug was to ensure a redraw of the element on each "animation" (in this case transition) frame as you can clearly see via getComputedStyle that the transform-origin is correctly transitioned!
Basically I added eventlisteners for the transitionstart and transitionend and on each animationframe toggle some style attribute that enforces a redraw (f.e. in my case margin-left from 0 to 1 to 0px until the animation is finished)
function forceRedraw(ts) {
this.style.marginLeft = this.style.marginLeft == '1px' ? '0px':'1px';
if (this.classList.contains('transitioning'))
requestAnimationFrame(forceRedraw.bind(this));
}
In my example I transition rotation and the transform-origin (from top left to bottom left) at the same time.
https://codepen.io/ftav/pen/QWvYEPj
Depending on which element you modify this might have more or less of a performance impact. It works fine for me. I just wish they would fix the bug and this workaround could go away.

How to sync two animations using css keyframes?

I am working on solution
I have created a basic html banner where I want to keep image and text animations in sync.
Basically image animation is like scale logo for about 3 seconds, meanwhile logo is animated I want text for same in typing effect
I have created basic solution using css and javascript but it is not in sync
var typewriter = function(txt) {
var container = document.getElementById('typewriter'),
speed = 28,
i = 0,
wordsObj = txt.split(" ")
container.textContent = "";
runAllWords();
function runAllWords() {
if (i < wordsObj.length) {
var a = (i == 0) ? i : i - 1;
setTimeout(function() {
showWord(wordsObj[i], 0)
}, wordsObj[a].length * speed);
}
}
function showWord(word, countWord) {
if (countWord < word.length) {
setTimeout(function() {
showLetter(word, countWord)
}, speed);
} else {
container.textContent = container.textContent + " ";
i += 1;
runAllWords();
}
if (i === wordsObj.length) {
console.log('complete')
}
}
function showLetter(word, countWord) {
container.textContent = container.textContent + word[countWord];
showWord(word, countWord + 1);
}
}
var i = 0;
function myLoop() {
// create a loop function
var dataType = document.getElementById('typewriter').dataset.typewriter,
w = dataType.split(',')
setTimeout(function() { // call a 3s setTimeout when the loop is called
typewriter(w[i]); // your code here
i++; // increment the counter
if (i < w.length) { // if the counter < 10, call the loop function
myLoop(); // .. again which will trigger another
} // .. setTimeout()
}, 3000)
}
myLoop();
.addsp_320x50 {
width: 100%;
height: 50px;
position: relative;
}
.addsp_320x50_img {
position: absolute;
top: 1px;
left: 10px;
width: 48px;
height: 48px;
border: 0px solid #ccc;
border-radius: 50%;
}
.addsp_title_text {
position: absolute;
top: 5px;
left: 70px;
font-family: Open Sans;
font-weight: bold;
}
.addsp_title_desc {
position: absolute;
top: 20px;
left: 70px;
font-family: Open Sans;
color: #999;
}
.addsp_320x50_action button {
height: 27px;
background: #058562;
border-radius: 4px;
color: #fff;
border-color: #058562;
font-size: 12px;
font-weight: bold;
font-family: Open Sans;
border-style: solid;
position: absolute;
right: 10px;
top: 10px;
display: flex;
}
.adz_text_1 {}
.adz_text_2 {
animation: text2;
}
.adz_text_1,
.adz_text_2 {}
#keyframes text2 {
0%,
50%,
100% {
width: 0px;
}
60%,
90% {
width: 200px;
}
}
#keyframes text1 {
0%,
50%,
100% {
width: 0px;
}
10%,
40% {
width: 200px;
}
}
#media only screen and (min-width: 320px) {
.addsp_320x50_img {
width: 42px;
height: 42px;
top: 4px;
left: 5px;
}
.addsp_title_text {
top: 14px;
left: 56px;
font-size: 0.85rem;
}
.addsp_title_desc {
top: 25px;
left: 55px;
font-size: 0.8rem;
}
}
#media only screen and (min-width: 480px) {
.addsp_title_text {
top: 3px;
left: 55px;
font-size: 1.1rem;
}
.addsp_title_desc {
top: 28px;
left: 55px;
font-size: 0.8rem;
}
}
#media only screen and (min-width: 600px) {
.addsp_title_text {
top: 3px;
left: 70px;
font-size: 1.1rem;
}
.addsp_title_desc {
top: 28px;
left: 70px;
font-size: 0.8rem;
}
}
#media only screen and (min-width: 800px) {
.addsp_title_text {
top: 3px;
left: 70px;
font-size: 1.1rem;
}
.addsp_title_desc {
top: 28px;
left: 70px;
font-size: 0.8rem;
}
}
.addsp_320x50_img:nth-child(1) {
animation-name: scale;
animation-duration: 3s;
animation-timing-function: linear;
animation-delay: 1s;
animation-iteration-count: infinite;
animation-fill-mode: forwards;
opacity: 0;
}
.addsp_320x50_img:nth-child(2) {
animation-name: scale;
animation-duration: 3s;
animation-timing-function: linear;
animation-delay: 4s;
animation-iteration-count: infinite;
animation-fill-mode: forwards;
opacity: 0;
}
.addsp_320x50_img:nth-child(3) {
animation-name: scale;
animation-duration: 3s;
animation-timing-function: linear;
animation-delay: 7s;
animation-iteration-count: infinite;
animation-fill-mode: forwards;
opacity: 0;
}
#keyframes scale {
0% {
transform: scale(1);
opacity: 1
}
20% {
transform: scale(1.2);
opacity: 1
}
40% {
transform: scale(1);
opacity: 1
}
60% {
transform: scale(1.2);
opacity: 1
}
80% {
transform: scale(1);
opacity: 1
}
90% {
transform: translateY(-100px);
opacity: 0;
}
100% {
opacity: 0;
}
}
.blinking-cursor {
color: #2E3D48;
-webkit-animation: 1s blink step-end infinite;
-moz-animation: 1s blink step-end infinite;
-ms-animation: 1s blink step-end infinite;
-o-animation: 1s blink step-end infinite;
animation: 1s blink step-end infinite;
}
#keyframes "blink" {
from,
to {
color: transparent;
}
50% {
color: black;
}
}
#-moz-keyframes blink {
from,
to {
color: transparent;
}
50% {
color: black;
}
}
#-webkit-keyframes "blink" {
from,
to {
color: transparent;
}
50% {
color: black;
}
}
#-ms-keyframes "blink" {
from,
to {
color: transparent;
}
50% {
color: black;
}
}
#-o-keyframes "blink" {
from,
to {
color: transparent;
}
50% {
color: black;
}
}
<div class="addsp_320x50">
<img src="https://de7yjjf51n4cm.cloudfront.net/banners/amazonprime_newicon.jpg" class="addsp_320x50_img">
<img src="https://de7yjjf51n4cm.cloudfront.net/banners/amazonprime_newicon.jpg" class="addsp_320x50_img">
<img src="https://de7yjjf51n4cm.cloudfront.net/banners/amazonprime_newicon.jpg" class="addsp_320x50_img">
<div class="addsp_title_text">
<span class="adz_text_1 typewriter" id="typewriter" data-typewriter="Web Strategy,
UX Testing,
Content Management System,
Web Design,
Research and Analytics,
Information Architecture,
Strategic Consulting,Maintenance and Support"></span><span class="blinking-cursor">|</span>
</div>
<div class="addsp_320x50_action">
<button>DOWNLOAD</button></div>
</div>
Mathematically speaking, sinking means adjusting frequency and phase. I'll demonstrate each separately. Note that what I'm gonna explain is the concept and you can implement it in your codes using Javascript, css, etc
Frequency
You can't sink two animations unless the longer duration is a factor
of shorter duration.
For example in your codes, blinking has a duration of 1s. So your image scaling duration and Also the whole duration must be a selection of either 1s, 2s, 3s, ... or 1/2s, 1/3s, ...
For better understanding let me make a simple example. Assume two images want to be animated.
<img src="1.png" id="img1">
<img src="1.png" style="margin-left: 50px;" id="img2">
Consider two different animations for each one
#keyframes k1
{
25%
{
transform: rotate(-4deg);
}
50%
{
transform: rotate(0deg);
}
75%
{
transform: rotate(3deg);
}
100%
{
transform: rotate(0deg);
}
}
#keyframes k2
{
50%
{
transform: scale(1.2);
}
100%
{
transform: scale(1);
}
}
So since k2 is simpler, I'll first assign it to img2 with duration of 0.7s
#img2
{
animation: k2 0.7s linear infinite;
}
And based on what was explained, I will assign animation k1 to img1 with a duration of 1.4s. (NOT 1.3s NOT 1.5s VERY IMPORTANT!)
#img1
{
animation: k1 1.4s linear infinite;
}
If you run this code you'll see they are sink! To feel the concept better, change the duration of k1 to 0.9s. Now it feels like they are doing their thing separately!
Note
I set k1 to 1.4s (0.7s × 2) because k1 seems to be a combination of one go forward and come back and using 2x feels they are dancing together with the same harmony!
Phase
In css, phase is showed by animation-delay. Modifying frequencies (duration) is enough to sink two animations but if two animation begin at the same time it will feel better! So to illustrate set a delay for img1 of 0.2s. They are still sink but it doesn't feel nice! Now change the delay to 0.7s. Now it's beautiful again! (Maybe even more beautiful)
Back to your code
Your images scale with duration of 1.2s (40% of 3s) and your text blinking duration is 1s and as you can see they are not factor of each other so you can't sink!
I think you might be looking for the animation iteration event and the animation start event.
Instead of just using the myLoop function to call itself, try using these listeners to call it instead.
The end of your js file would look like:
var i = 0;
function myLoop() {
var dataType = document.getElementById("typewriter").dataset.typewriter,
w = dataType.split(",");
if (i < w.length -1 ) {
typewriter(w[i]);
}
i++;
}
var imageElems = Array.from(document.querySelectorAll('.addsp_320x50_img'));
imageElems.forEach(elem=>{
elem.addEventListener('animationstart',myLoop);
});
Where ".addsp_320x50_img" is just whatever common selector you give to all the images.
If you control the animation with the same JavaScript loop as the typewriter script, it won't lose sync. I rewrote the typewriter script to do this in the snippet below.
startTypewriter() Exaplaination
First, all the messages from the are collected converted into an array.
typewriter.getAttribute('data-typewriter').split(',');
Then the CSS icon animation is started. Because JavaScript intervals wait for their duration before executing their code, so the first message is typed by calling type() before the interval is created.
icon.classList.add('icon-animation');
type(typewriter, messages[0].trim(), animationDuration - pauseDuration);
The interval is now started, running every 3 seconds by default. The first thing that happens is the animation is reset in case it got out of sync somehow.
icon.classList.remove('icon-animation');
window.setTimeout(function() {
icon.classList.add('icon-animation');
}, 25);
Next, the message is typed by calling type(). Before it ends, a check is run so see if it's on the last array element. If so, it will start over.
if (i == messages.length) i = 0;
type() Exaplaination
At the start, the timePerCharacter value is calculated. The message is split to an array and the typewriter output is cleared
var timePerCharacter = duration / message.length;
var message = message.split('');
typewriter.innerHTML = '';
A loop is created, running every timePerCharacter. The character is outputted to the typewriter output.
typewriter.innerHTML += message[i];
Once all the characters are outputted, the loop is cleared
if (i == message.length) clearInterval(typeLoop);
Snippent
var animationDuration = 3000;
var pauseDuration = 2000;
startTypewriter();
function startTypewriter() {
var typewriter = document.getElementById('typewriter');
var icon = document.getElementById('icon');
var messages = typewriter.getAttribute('data-typewriter').split(',');
icon.classList.add('icon-animation');
type(typewriter, messages[0].trim(), animationDuration - pauseDuration);
var i = 1;
window.setInterval(function() {
icon.classList.remove('icon-animation');
window.setTimeout(function() {
icon.classList.add('icon-animation');
}, 25);
type(typewriter, messages[i].trim(), animationDuration - pauseDuration);
i++;
if (i == messages.length) i = 0;
}, animationDuration);
}
function type(typewriter, message, duration) {
var timePerCharacter = duration / message.length;
var message = message.split('');
typewriter.innerHTML = '';
var i = 0;
var typeLoop = window.setInterval(function() {
typewriter.innerHTML += message[i];
i++;
if (i == message.length) clearInterval(typeLoop);
}, timePerCharacter);
}
#keyframes icon {
20% {
transform: scale(0.9);
}
40% {
transform: scale(1);
}
60% {
transform: scale(0.9);
}
80% {
transform: scale(1);
}
100% {
transform: translateY(-200%);
}
}
.icon {
border-radius: 100%;
}
.icon-animation {
animation: icon 3s;
}
#keyframes cursor {
50% {
color: transparent;
}
}
.blinking-cursor {
animation: cursor 1s steps(1) infinite;
}
<img id="icon" src="https://de7yjjf51n4cm.cloudfront.net/banners/amazonprime_newicon.jpg" class="icon">
<span id="typewriter" data-typewriter="
Web Strategy,
UX Testing,
Content Management System,
Web Design,
Research and Analytics,
Information Architecture,
Strategic Consulting,
Maintenance and Support
">
</span>
<span class="blinking-cursor">|</span>

CSS3 Animation: Forwards fill not working with position and display on Safari

So, I have created a CSS3 animation that is supposed to fade out an element by setting its opacity from 1 to 0 and at the last frames change the position to absolute and display to none. But on Safari it will only maintain the opacity, position and display are not set to the final values.
#-webkit-keyframes impressum-fade-out {
0% {
opacity: 1;
display: block;
position: relative;
}
99% {
opacity: 0;
position: relative;
}
100% {
opacity: 0;
display: none;
position: absolute;
}
}
It seems to work on Chrome but not on Safari (I tried version 8). Apparently, position and display do not work properly with animation-fill-mode: forwards...
JSFiddle: http://jsfiddle.net/uhtL12gv/
EDIT For Bounty: I am aware of workarounds with Javascript and transitionend events. But I am wondering why Browsers lack support for this? Does the specification state that fillmode forwards doesnt apply to some attributes like position or is this a bug in the browsers? Because I couldnt find anything in the bug trackers.. If anybody has some insight, I would really appreciate it
As Suggested in the comments, you can adjust the height.
EDIT: Animation Reference Links Added.
Display property is not animatable.
Position property is not
animatable.
List of all CSS properties and if and how they are
animatable.
$('.block').click(function() { $(this).toggleClass('active') });
#-webkit-keyframes impressum-fade-out {
0% {
opacity: 1;
}
99% {
opacity: 0;
}
100% {
opacity: 0;
height:0;
}
}
.block {
width: 100px;
height: 100px;
background: blue;
}
.block2 {
width: 100px;
height: 100px;
background: red;
}
.block.active {
-webkit-animation-name: impressum-fade-out;
animation-name: impressum-fade-out;
-webkit-animation-duration: 500ms;
animation-duration: 500ms;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="block"></div>
<div class="block2"></div>
I would suggest you the cross-browser solution based on CSS3 Transitions and transitionend event:
JSFiddle
$('.block').one('click', function() {
var $this = $(this);
$this.one('webkitTransitionEnd transitionend', function() {
$this.addClass('block_hidden');
$this.removeClass('block_transition');
});
$this.addClass('block_transition');
});
.block {
width: 100px;
height: 100px;
background: blue;
-webkit-transition: opacity 0.5s;
transition: opacity 0.5s;
}
.block_2 {
background: red;
}
.block_transition {
opacity: 0;
}
.block_hidden {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="block"></div>
<div class="block block_2"></div>

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