Keyframes animation working only on chrome/chromium - html

I have done a simple three image transition animation code. The code can be found here:
http://jsfiddle.net/harshithjv/AF3Jj/
This code works only on chrome and chromium browsers. It does not work on Apple's Safari browser also. Also it does not work on any other browsers(I tested on Firefox and IE9, not tried Opera).
I guess that I am missing something on animation shorthand property. Please help me out.
Edit:
I am updating with the code for some clarity, which I should have done in first place.
HTML Code:
<div class="animated_star"></div>
CSS3 Code:
#-moz-keyframes shining_star {
from {
background-image: url('http://findicons.com/icon/download/162253/star_grey/16/ico');
}
50% {
background-image: url('http://findicons.com/icon/download/181769/star_half/16/ico');
}
to {
background-image: url('http://findicons.com/icon/download/159919/star/16/ico');
}
}
#-webkit-keyframes shining_star {
from {
background-image: url('http://findicons.com/icon/download/162253/star_grey/16/ico');
}
50% {
background-image: url('http://findicons.com/icon/download/181769/star_half/16/ico');
}
100% {
background-image: url('http://findicons.com/icon/download/159919/star/16/ico');
}
}
#keyframes shining_star {
from{
background-image: url('http://findicons.com/icon/download/162253/star_grey/16/ico');
}
50% {
background-image: url('http://findicons.com/icon/download/181769/star_half/16/ico');
}
to {
background-image: url('http://findicons.com/icon/download/159919/star/16/ico');
}
}
.animated_star{
height: 16px;
width: 16px;
float: left;
-webkit-animation: shining_star 1s infinite; /* works only for Chrome/Chromium */
-moz-animation: shining_star 1s infinite;
animation: shining_star 1s infinite;
}


Background image isn't a property that can be animated - you can't tween the property.
Instead, try laying out all the images on top of each other using position:absolute, then animate the opacity of all of them to 0 except the one you want repeatedly.
also
It works in Chrome 19!
So at some point in the future, keyframes could really be... frames!
You are living in the future ;)


After some research on this, I figured that background-image CSS property is not supported inside keyframes in most browsers. It must be because of loading too many images dynamically can lead to performance issues if larger images are loaded.
Thanks to #Morpheus for another stackoverflow link(http://stackoverflow.com/questions/7318462/changing-background-image-with-css3-animations), through which I decided to resolve the issue through image sprites and reposition(using CSS property - background-position) within that sprite to select the image as I want it. The problem with background-position CSS property is that when it applied for CSS animation through keyframes, the reposition shows the movement within image sprite. But I wanted to show 3 stars transition quickly without movement in three frames. To make that possible, I had to use 6 keyframes where first star's position will be set in 0% and 33%, second star's position will be set in 34% and 66% and the third star will be set in 67% and 100%.
I have created a jsFiddle which does not have image sprites of same stars. I could not locate sprite for same stars online and so I used alternate stars. Its not a perfect example since it has sloppy animation, but I have created a smaller sprite image (48px x 16px) on my system, and animation looks good enough.
HTML Code:
<div class="animated_star"></div>
CSS Code:
#-moz-keyframes shining_star {
0% { background-position: -135px 0px; }
33% { background-position: -135px 0px; }
34% { background-position: -135px -260px; }
66% { background-position: -135px -260px; }
67% { background-position: -270px -260px; }
100% { background-position: -270px -260px; }
}
#-webkit-keyframes shining_star {
0% { background-position: -135px 0px; }
33% { background-position: -135px 0px; }
34% { background-position: -135px -260px; }
66% { background-position: -135px -260px; }
67% { background-position: -270px -260px; }
100% { background-position: -270px -260px; }
}
#keyframes shining_star {
0% { background-position: -135px 0px; }
33% { background-position: -135px 0px; }
34% { background-position: -135px -260px; }
66% { background-position: -135px -260px; }
67% { background-position: -270px -260px; }
100% { background-position: -270px -260px; }
}
.animated_star{
height: 130px;
width: 135px;
float: left;
background: transparent url('http://azmind.com/wp-content/uploads/2011/11/social-star-icons.png') no-repeat fixed;
background-position: 0px -390px;
-webkit-animation: shining_star .5s infinite linear;
-moz-animation: shining_star .5s infinite linear;
animation: shining_star .5s infinite linear;
}
The jsFiddle link: http://jsfiddle.net/harshithjv/7QvSP/2/

Related

How to smooth out a CSS gradient transition?

I am creating an interactive touchscreen display using a program called Intuiface and have created some background tiles/squares that I want to make look 'alive' by transitioning slowly between colours.
I have used a linear-gradient transition in CSS to do it but the problem is that the transition looks choppy. The program is running 12 visible tiles (it is a very large touchscreen).
I have tried using fewer colours and running on more powerful GPUs (I think it is CPU run anyway) but this hasn't helped.
body {
width: 100wh;
height: 90vh;
background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
background-size: 400% 400%;
animation: Gradient 15s ease infinite;
}
#keyframes Gradient {
0% {
background-position: 0% 50%
}
50% {
background-position: 100% 50%
}
100% {
background-position: 0% 50%
}
}
At the moment the animations are noticeably choppy. I would like the transition to be much smoother. Does anyone know how I can achieve this?
Here is the code snippet.
body {
width: 100wh;
height: 90vh;
background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
background-size: 400% 400%;
animation: Gradient 15s ease infinite;
}
#keyframes Gradient {
0% {
background-position: 0% 50%
}
50% {
background-position: 100% 50%
}
100% {
background-position: 0% 50%
}
}
<html>
<body>
</body>
</html>

Animating background-* properties can be resource intensive - you can try animating transform for relatively better performance - see demo below using traslate for the animation:
body {
margin: 0;
}
div {
height: 100vh;
overflow: hidden;
}
div:after {
content: '';
display: block;
width: 400vw;
height: 400vh;
background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
animation: gradient 15s ease infinite;
}
#keyframes gradient {
50% {
transform: translate(-300vw, -300vh);
}
}
<div></div>

Since your animation lasts 15 seconds, trying to run it at full 60fps would mean calculating 15*60 = 900 frames.
Since the difference between a frame and the next is quite small, you can make the CPU work quite less asking for a stepped animation, for instance with steps(75)
It could be also good to set slight delays between animations, so that they don't execute at the same time
body {
width: 100wh;
height: 90vh;
background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
background-size: 400% 400%;
animation: Gradient 15s infinite steps(75);
}
#keyframes Gradient {
0% {
background-position: 0% 50%
}
50% {
background-position: 100% 50%
}
100% {
background-position: 0% 50%
}
}
<html>
<body>
</body>
</html>

Smoother background-images animations (prevent flickering)

I have three background images that I want to animate between. I do this as outlined below.
However, I find that sometimes (when first loading the page), the images flicker. So instead of a smooth transition what happens is that image 1 flickers then smoothly fades out, then image 2 flickers and then smoothly transitions in.
How can I avoid this flickering? Is there a way to wait for the images to be fully loaded before to start the animation? Or is that not the problem?
.page-light {
background-repeat: no-repeat;
background-position: center top;
}
#media (max-width: 767.98px) {
.page-light {
background-image: url('/img/hero/front-introduction-mobile.png');
}
}
#media (min-width: 768.00px) {
.page-light {
background-image: url('/img/hero/front-introduction-1.png');
-webkit-animation: animation-home-background 9000ms infinite;
-moz-animation: animation-home-background 9000ms infinite;
-o-animation: animation-home-background 9000ms infinite;
animation: animation-home-background 9000ms infinite;
-webkit-animation-delay: 1s;
/* Chrome, Safari, Opera */
animation-delay: 3s;
}
}
#-webkit-keyframes animation-home-background {
0% {
background-image: url('/img/hero/front-introduction-1.png');
}
40% {
background-image: url('/img/hero/front-introduction-2.png');
}
80% {
background-image: url('/img/hero/front-introduction-3.png');
}
100% {
background-image: url('/img/hero/front-introduction-1.png');
}
}
#keyframes animation-home-background {
0% {
background-image: url('/img/hero/front-introduction-1.png');
}
33% {
background-image: url('/img/hero/front-introduction-2.png');
}
66% {
background-image: url('/img/hero/front-introduction-3.png');
}
100% {
background-image: url('/img/hero/front-introduction-1.png');
}
}

I found this to be extremely helpful, as pointed out by #vxpin in the comments.
https://stackoverflow.com/a/52358326/4262057
Basically you preload all the images as follows:
.stylename {
background-image:
url('http://www.BungalowSoftware.com/images/silver-background.jpg'),
url('http://www.BungalowSoftware.com/images/silver-background2.jpg');
}

Dynamic CSS Sprite animation size

I am developing an Ionic application where one of the templates contains sprite animation. The animation works fine except that the size is fixed for any device I use. Here's the code I use:
CSS
#animation_boy {
width: 558px;
height: 1536px;
background-image: url("../img/boy_sprite.png");
-webkit-animation: play 1.2s steps(7) infinite;
animation: play 1.1s steps(7) infinite;
}
#-webkit-keyframes play {
from {
background-position: 0px
}
to {
background-position: -3906px
}
}
#keyframes play {
from {
background-position: 0px
}
to {
background-position: -3906px
}
}
HTML
<div id="animation_boy"></div>
I want to make the size depend on the screen. Thanks for the help.

CSS animation in different browsers [duplicate]

Why this isn't working? What am I doing wrong?
CSS
#-webkit-keyframes test {
0% {
background-image: url('frame-01.png');
}
20% {
background-image: url('frame-02.png');
}
40% {
background-image: url('frame-03.png');
}
60% {
background-image: url('frame-04.png');
}
80% {
background-image: url('frame-05.png');
}
100% {
background-image: url('frame-06.png');
}
}
div {
float: left;
width: 200px;
height: 200px;
-webkit-animation-name: test;
-webkit-animation-duration: 10s;
-webkit-animation-iteration-count: 2;
-webkit-animation-direction: alternate;
-webkit-animation-timing-function: linear;
}
DEMO
http://jsfiddle.net/hAGKv/

Updated for 2020: Yes, it can be done! Here's how.
Snippet demo:
#mydiv{ animation: changeBg 1s infinite; width:143px; height:100px; }
#keyframes changeBg{
0%,100% {background-image: url("https://i.stack.imgur.com/YdrqG.png");}
25% {background-image: url("https://i.stack.imgur.com/2wKWi.png");}
50% {background-image: url("https://i.stack.imgur.com/HobHO.png");}
75% {background-image: url("https://i.stack.imgur.com/3hiHO.png");}
}
<div id='mydiv'></div>
Background image [isn't a property that can be animated][1] - you can't tween the property.
Original Answer: (still a good alternative)
Instead, try laying out all the images on top of each other using position:absolute, then animate the opacity of all of them to 0 except the one you want repeatedly.

It works in Chrome 19.0.1084.41 beta!
So at some point in the future, keyframes could really be... frames!
You are living in the future ;)

Works for me.
Notice the use of background-image for transition.
#poster-img {
background-repeat: no-repeat;
background-position: center;
position: absolute;
overflow: hidden;
-webkit-transition: background-image 1s ease-in-out;
transition: background-image 1s ease-in-out;
}

This is really fast and dirty, but it gets the job done: jsFiddle
#img1, #img2, #img3, #img4 {
width:100%;
height:100%;
position:fixed;
z-index:-1;
animation-name: test;
animation-duration: 5s;
opacity:0;
}
#img2 {
animation-delay:5s;
-webkit-animation-delay:5s
}
#img3 {
animation-delay:10s;
-webkit-animation-delay:10s
}
#img4 {
animation-delay:15s;
-webkit-animation-delay:15s
}
#-webkit-keyframes test {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
}
}
#keyframes test {
0% {
opacity: 0;
}
50% {
opacity: 1;
}
100% {
}
}
I'm working on something similar for my site using jQuery, but the transition is triggered when the user scrolls down the page - jsFiddle

I needed to do the same thing as you and landed on your question. I ended up taking finding about the steps function which I read about from here.
JSFiddle of my solution in action (Note it currently works in Firefox, I'll let you add the crossbrowser lines, trying to keep the solution clean of clutter)
First I created a sprite sheet that had two frames. Then I created the div and put that as the background, but my div is only the size of my sprite (100px).
<div id="cyclist"></div>
#cyclist {
animation: cyclist 1s infinite steps(2);
display: block;
width: 100px;
height: 100px;
background-image: url('../images/cyclist-test.png');
background-repeat: no-repeat;
background-position: top left;
}
The animation is set to have 2 steps and have the whole process take 1 second.
#keyframes cyclist {
0% {
background-position: 0 0;
}
100% {
background-position: 0 -202px; //this should be cleaned up, my sprite sheet is 202px by accident, it should be 200px
}
}
Thiago above mentioned the steps function but I thought I'd elaborate more on it. Pretty simple and awesome stuff.

Your code can work well with some adaptations :
div {
background-position: 50% 100%;
background-repeat: no-repeat;
background-size: contain;
animation: animateSectionBackground infinite 240s;
}
#keyframes animateSectionBackground {
00%, 11% { background-image: url(/assets/images/bg-1.jpg); }
12%, 24% { background-image: url(/assets/images/bg-2.jpg); }
25%, 36% { background-image: url(/assets/images/bg-3.jpg); }
37%, 49% { background-image: url(/assets/images/bg-4.jpg); }
50%, 61% { background-image: url(/assets/images/bg-5.jpg); }
62%, 74% { background-image: url(/assets/images/bg-6.jpg); }
75%, 86% { background-image: url(/assets/images/bg-7.jpg); }
87%, 99% { background-image: url(/assets/images/bg-8.jpg); }
}
Here is the explanation of the percentage to suit your situation:
First you need to calculate the "chunks". If you had 8 differents background, you need to do :
100% / 8 = 12.5% (to simplify you can let fall the decimals) => 12%
After that you obtain that :
#keyframes animateSectionBackground {
00% { background-image: url(/assets/images/bg-1.jpg); }
12% { background-image: url(/assets/images/bg-2.jpg); }
25% { background-image: url(/assets/images/bg-3.jpg); }
37% { background-image: url(/assets/images/bg-4.jpg); }
50% { background-image: url(/assets/images/bg-5.jpg); }
62% { background-image: url(/assets/images/bg-6.jpg); }
75% { background-image: url(/assets/images/bg-7.jpg); }
87% { background-image: url(/assets/images/bg-8.jpg); }
}
If you execute this code, you will see the transition will be permanantly. If you want the backgrounds stay fixed while a moment, you can do like this :
#keyframes animateSectionBackground {
00%, 11% { background-image: url(/assets/images/bg-1.jpg); }
12%, 24% { background-image: url(/assets/images/bg-2.jpg); }
25%, 36% { background-image: url(/assets/images/bg-3.jpg); }
37%, 49% { background-image: url(/assets/images/bg-4.jpg); }
50%, 61% { background-image: url(/assets/images/bg-5.jpg); }
62%, 74% { background-image: url(/assets/images/bg-6.jpg); }
75%, 86% { background-image: url(/assets/images/bg-7.jpg); }
87%, 99% { background-image: url(/assets/images/bg-8.jpg); }
}
That mean you want :
bg-1 stay fixed from 00% to 11%
bg-2 stay fixed from 12% to 24%
etc
By putting 11%, the transtion duration will be 1% (12% - 11% = 1%).
1% of 240s (total duration) => 2.4 seconds.
You can adapt according to your needs.

The linear timing function will animate the defined properties linearly. For the background-image it seems to have this fade/resize effect while changing the frames of you animation (not sure if it is standard behavior, I would go with #Chukie B's approach).
If you use the steps function, it will animate discretely. See the timing function documentation on MDN for more detail. For you case, do like this:
-webkit-animation-timing-function: steps(1,end);
animation-timing-function: steps(1,end);
See this jsFiddle.
I'm not sure if it is standard behavior either, but when you say that there will be only one step, it allows you to change the starting point in the #keyframes section. This way you can define each frame of you animation.

Like the above stated, you can't change the background images in the animation. I've found the best solution to be to put your images into one sprite sheet, and then animate by changing the background position, but if you're building for mobile, your sprite sheets are limited to less than 1900x1900 px.

I needed to do the same thing recently. Here's a simple implementation
#wrapper { width:100%; height:100%; position:relative; }
#wrapper img { position:absolute; top:0; left:0; width:100%; height:auto; display:block; }
#wrapper .top { animation:fadeOut 2s ease-in-out; animation-fill-mode:forwards; }
#keyframes fadeOut {
0% { opacity:1; }
100% { opacity:0; }
}
<div id="wrapper">
<img src="img1.jpg" class="top" style="z-index:2;">
<img src="img2.jpg" style="z-index:1;">
</div>

You can use animated background-position property and sprite image.

You can follow by this code:
#cd{
position: relative;
margin: 0 auto;
height: 281px;
width: 450px;
}
#cf img{
left: 0;
position: absolute;
-moz-transition: opacity 1s ease-in-out;
transition: opacity 1s ease-in-out;
}
#cf img.top:hover{
opacity: 0;
}
<div id="cf">
<img class="button" src="Birdman.jpg" />
<img src="Turtle.jpg" class="top" />
</div>

You can use the jquery-backstretch image which allows for animated slideshows as your background-images!
https://github.com/jquery-backstretch/jquery-backstretch
Scroll down to setup and all of the documentation is there.

Well I can change them in chrome. Its simple and works fine in Chrome using -webkit css properties.

How can I make my background image move for a certain duration and then start moving back, and then start again?

Currently I have my background image moving to the left using the code in this post. But the issue is that my background image isn't infinite and there's an ugly jump back to the beginning once it runs out. Is there a way to prevent that or to maybe make it loop back?
Here is my html and css:
<div class="cantstyle">
<div id="0" class="slidebg bg" style="min-height:100em;background-image:url('footer_lodyas.png');">
<div class="hvr-underline-from-center" style="text-align:center; color:white;">
<h3 style="font-size:6em;color:white;text-align:center;margin-top:15%;"> title <span class="hvr-grow">t</span><span class="hvr-grow">t</span><span class="hvr-grow">l</span><span class="hvr-grow">E</span> </h3>
<p style="font-size:1.2em;"> subtitle </p>
<p>Home | Tab2 | Tab3 | Tab4</p>
</div>
</div>
</div>
Css:
.bg:hover {
background-image: url("footer_lodyas.png");
-webkit-animation: 3s slideBg infinite linear;
-moz-animation: 3s slideBg infinite linear;
}
#-webkit-keyframes slideBg {
0% {
background-position: 0 0;
}
100% {
background-position: 200px 0;
}
}
#-moz-keyframes slideBg {
0% {
background-position: 0 0;
}
100% {
background-position: 200px 0;
}
}

I think that you should make another section of code dedicated to moving the background image back. You should probably just repeat your current code again but instead of moving it forwards, you should move it back.
Try this:
#-moz-keyframes slideBg {
0% {
background-position: 200px 0px;
}
100% {
background-position: 0px 0px;
}
}
#-moz-keyframes slideBg {
0% {
background-position: 200px 0px;
}
100% {
background-position: 0px 0px;
}
}