Essentially what I'm trying to do is give an element a CSS animation when it gains a class, then reverse that animation when I remove the class without playing the animation when the DOM renders.
Fiddle here: http://jsfiddle.net/bmh5g/
As you can see in the fiddle, when you hover the "Hover Me" button, #item flips down. When you mouseoff the hover button, #item just disappears. I want #item to flip back up (ideally using the same animation but in reverse). Is this possible?
$('#trigger').on({
mouseenter: function() {
$('#item').addClass('flipped');
},
mouseleave: function() {
$('#item').removeClass('flipped');
}
})
#item {
position: relative;
height: 100px;
width: 100px;
background: red;
-webkit-transform: perspective(350px) rotateX(-90deg);
transform: perspective(350px) rotateX(-90deg);
-webkit-transform-origin: 50% 0%;
transform-origin: 50% 0%;
}
#item.flipped {
animation: flipper 0.7s;
animation-fill-mode: forwards;
-webkit-animation: flipper 0.7s;
-webkit-animation-fill-mode: forwards;
}
#keyframes flipper {
0% {
transform: perspective(350px) rotateX(-90deg);
}
33% {
transform: perspective(350px) rotateX(0deg);
}
66% {
transform: perspective(350px) rotateX(10deg);
}
100% {
transform: perspective(350px) rotateX(0deg);
}
}
#-webkit-keyframes flipper {
0% {
-webkit-transform: perspective(350px) rotateX(-90deg);
}
33% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
66% {
-webkit-transform: perspective(350px) rotateX(10deg);
}
100% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id='trigger'>Hover Me</div>
<div id='item'></div>
I would have the #item start out hidden with the reverse animation by default. Then add the class to give it the animation and show the #item. http://jsfiddle.net/bmh5g/12/
$('#trigger').on({
mouseenter: function() {
$('#item').show();
$('#item').addClass('flipped');
},
mouseleave: function() {
$('#item').removeClass('flipped');
}
});
#trigger {
position: relative;
display: inline-block;
padding: 5px 10px;
margin: 0 0 10px 0;
background: teal;
color: white;
font-family: sans-serif;
}
#item {
position: relative;
height: 100px;
width: 100px;
background: red;
display: none;
-webkit-transform: perspective(350px) rotateX(-90deg);
transform: perspective(350px) rotateX(-90deg);
-webkit-transform-origin: 50% 0%;
transform-origin: 50% 0%;
animation: flipperUp 0.7s;
animation-fill-mode: forwards;
-webkit-animation: flipperUp 0.7s;
-webkit-animation-fill-mode: forwards;
}
#item.flipped {
animation: flipper 0.7s;
animation-fill-mode: forwards;
-webkit-animation: flipper 0.7s;
-webkit-animation-fill-mode: forwards;
}
#keyframes flipper {
0% {
transform: perspective(350px) rotateX(-90deg);
}
33% {
transform: perspective(350px) rotateX(0deg);
}
66% {
transform: perspective(350px) rotateX(10deg);
}
100% {
transform: perspective(350px) rotateX(0deg);
}
}
#-webkit-keyframes flipper {
0% {
-webkit-transform: perspective(350px) rotateX(-90deg);
}
33% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
66% {
-webkit-transform: perspective(350px) rotateX(10deg);
}
100% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
}
#keyframes flipperUp {
0% {
transform: perspective(350px) rotateX(0deg);
}
33% {
transform: perspective(350px) rotateX(10deg);
}
66% {
transform: perspective(350px) rotateX(0deg);
}
100% {
transform: perspective(350px) rotateX(-90deg);
}
}
#-webkit-keyframes flipperUp {
0% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
33% {
-webkit-transform: perspective(350px) rotateX(10deg);
}
66% {
-webkit-transform: perspective(350px) rotateX(0deg);
}
100% {
-webkit-transform: perspective(350px) rotateX(-90deg);
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<div id='trigger'>Hover Me</div>
<div id='item'></div>
Another approach, rather than using display: none, is to suppress the reverse animation with a class on page load, and then remove that class with the same event that applies the normal animation (eg: flipper). Like so (http://jsfiddle.net/astrotim/d7omcbrz/1/):
CSS - in addition to the flipperUp keyframe posted by Blake above
#item.no-animation
{
animation: none;
}
jQuery
$('#trigger').on({
mouseenter: function(){
$('#item').removeClass('no-animation');
$('#item').addClass('flipped');
},
mouseleave: function(){
$('#item').removeClass('flipped');
}
})
In addition to the answers here, please cache your $(selector)
So you pretty much do this var elements = $(selector); to cache.
Why?! Because if you use the code in the answers on this page as is you will ask the DOM for that same element collection ($('#item')) each time. DOM reading is an expensive operation.
For example, the accepted answer would look something like so:
var item = $('#item');
$('#trigger').on({
mouseenter: function(){
item.show();
item.addClass('flipped');
},
mouseleave: function(){
item.removeClass('flipped');
}
});
Since I've written all this text, might as well answer your question using CSS transitions
I know you asked for a CSS animations example, but for the animation you wanted to do (a card flipping open), it can be easily achieved using CSS transitions:
#item {
width: 70px;
height: 70px;
background-color: black;
line-height: 1;
color: white;
}
#item+div {
width: 70px;
height: 100px;
background-color: blue;
transform: perspective(250px) rotateX(-90deg);
transform-origin: 50% 0%;
transition: transform .25s ease-in-out
}
#item:hover+div {
transform: perspective(250px) rotateX(0);
}
<div id="item"></div>
<div></div>
Its animating down using css so to get it to animate up you need to create a class, say .item-up that does the transformation in the opposite so then you would remove the previous class and add the item-up class and that should animate it up.
I would write you a js fiddle for it but I dont know the syntax well enough.
Basically when you will need:
#keyframes flipper
#keyframes flipper-up //This does the opposite of flipper
and
$('#trigger').on({
mouseenter: function(){
$('#item').removeClass('flipped-up');
$('#item').addClass('flipped');
},
mouseleave: function(){
$('#item').removeClass('flipped');
$('#item').addClass('flipped-up');
}
})
jsfiddle.net/bmh5g/3 courtesy of Jake
CSS solution from MDN and almost supported by all browser
.animation(animationName 10s ease-in-out infinite alternate both running;)
You can make use of the attribute animation-direction to run the same animation in reverse.
If you couple this with one of the many methods described here for restarting an animation- we can start the animation forwards on mouseenter, then on mouseleave we can restart it and play it in reverse.
I don't know how to use jQuery very well, so I chose one of the non-jQuery methods mentioned in the article.
const element_button = document.getElementById('trigger');
const element_item = document.getElementById('item');
element_button.addEventListener("mouseenter", () => {
if (element_item.classList.contains('animate-backwards')) {
element_item.classList.remove('animate-backwards');
void element_item.offsetWidth;
}
element_item.classList.add('animate-forwards');
});
element_button.addEventListener("mouseleave", () => {
element_item.classList.remove('animate-forwards');
void element_item.offsetWidth;
element_item.classList.add('animate-backwards');
});
and
#item.animate-forwards {
animation: flipper 0.7s normal;
-webkit-animation: flipper 0.7s normal;
animation-fill-mode: forwards;
-webkit-animation-fill-mode: forwards;
}
#item.animate-backwards {
animation: flipper 0.7s reverse;
-webkit-animation: flipper 0.7s reverse;
animation-fill-mode: forwards;
-webkit-animation-fill-mode: forwards;
}
Here is a jsFiddle for the above code.
Worked fo me:
1 animation in reverse for the Element (from 100% to 0%)
1 separate animation forwards for the new class (from 0% to 100%)
And toggling that class would work
[1]: https://jsfiddle.net/q7bc4s0f/17/
Upd:
That way animation will play backwards on page load. To solve this you have to ADD new bacwards animation class on event ONCE and then toggle forwards animation class on that event.
Related
I have a CSS animation for a group of spans that make out a word. I am having trouble getting them to work properly. It seems on page load or refresh, they don't work. They only work after I manually save my project file.
Here is the CSS:
.word {
margin: 2rem;
}
.word span {
cursor: pointer;
display: inline-block;
font-size: 4vw;
user-select: none;
line-height: 0.8;
animation-iteration-count: 1;
}
.word span:nth-child(1).active {
animation: balance 1.5s ease-out;
transform-origin: bottom left;
}
#keyframes balance {
0%,
100% {
transform: rotate(100deg);
}
30%,
60% {
transform: rotate(-45deg);
}
}
.word span:nth-child(2).active {
animation: shrinkjump 1s ease-in-out;
transform-origin: bottom center;
}
#keyframes shrinkjump {
10%,
35% {
transform: scale(2, 0.2) translate(0, 0);
}
45%,
50% {
transform: scale(1) translate(0, -150px);
}
80% {
transform: scale(1) translate(0, 0);
}
}
.word span:nth-child(3).active {
animation: falling 2s ease-out;
transform-origin: bottom center;
}
#keyframes falling {
12% {
transform: rotateX(240deg);
}
24% {
transform: rotateX(150deg);
}
36% {
transform: rotateX(200deg);
}
48% {
transform: rotateX(175deg);
}
60%,
85% {
transform: rotateX(180deg);
}
100% {
transform: rotateX(0deg);
}
}
.word span:nth-child(4).active {
animation: rotate 1s ease-out;
}
#keyframes rotate {
20%,
80% {
transform: rotateY(180deg);
}
100% {
transform: rotateY(360deg);
}
}
.word span:nth-child(5).active {
animation: shrinkjump 1s ease-in-out;
transform-origin: bottom center;
}
.word span:nth-child(6).active {
animation: falling 2s ease-out;
transform-origin: bottom center;
}
.word span:nth-child(7).active {
animation: toplong 1.5s linear;
}
.word span:nth-child(8).active {
animation: balance 1.5s ease-out;
transform-origin: top left;
}
#keyframes toplong {
10%,
40% {
transform: translateY(-48vh) scaleY(1);
}
90% {
transform: translateY(-48vh) scaleY(4);
}
}
And here is the JavaScript to change the className:
const spans = document.querySelectorAll(".word span");
spans.forEach((span, idx) => {
span.addEventListener("click", (e) => {
e.target.classList.add("active");
});
span.addEventListener("animationend", (e) => {
e.target.classList.remove("active");
});
});
Does anyone have any idea why the css is behaving this way? I have experimented with a timeout and with the JavaScript to udpate the className. Thanks!
how can I use some animation on dropdowns?
Take a look on stripe.com footer and click on location or language links. I've record a video of this effect:
https://www.youtube.com/watch?v=WV0h2zlE7fQ or worse GIF version http://g.recordit.co/w1S4fSrUBA.gif
It would be nice if some of those libs can be used:
Dynamics.js
Animate.css
My external html/js/css coder told me, that is impossible due fact, that Bootstrap 4 use transform property for positioning of dropdown menu itself.
Prepered jsfiddle with default bootstrap setup. https://jsfiddle.net/7hq03Lov/4/
Additional question - can be some any other animation applied on modal too?
You can do it via css, Change as per your need.
.dropdown .dropdown-menu{
-webkit-animation: swing-in-top-fwd 1s cubic-bezier(0.175, 0.885, 0.320, 1.275) alternate both;
animation: swing-in-top-fwd 1s cubic-bezier(0.175, 0.885, 0.320, 1.275) alternate both;
}
#-webkit-keyframes swing-in-top-fwd {
0% {
-webkit-transform: rotateX(-100deg);
transform: rotateX(-100deg);
-webkit-transform-origin: top;
transform-origin: top;
opacity: 0;
}
100% {
-webkit-transform: rotateX(0deg);
transform: rotateX(0deg);
-webkit-transform-origin: top;
transform-origin: top;
opacity: 1;
}
}
#keyframes swing-in-top-fwd {
0% {
-webkit-transform: rotateX(-100deg);
transform: rotateX(-100deg);
-webkit-transform-origin: top;
transform-origin: top;
opacity: 0;
}
100% {
-webkit-transform: rotateX(0deg);
transform: rotateX(0deg);
-webkit-transform-origin: top;
transform-origin: top;
opacity: 1;
}
}
I have a few pages on my website and i made a header animation (pulldown). So, i need to reverse my animation (pullUp) when the other one page is clicked. Is there any option to do that ? Or is there any option to make the second animation (pullup) active when the other page is selleced
header{
background-color:black;
height:80px;
text-align:center;
animation-name: pullDown;
-webkit-animation-name: pullDown;
animation-duration: 2s;
-webkit-animation-duration: 2s;
animation-timing-function: ease-out;
-webkit-animation-timing-function: ease-out;
transform-origin: 50% 0%;
-ms-transform-origin: 50% 0%;
-webkit-transform-origin: 50% 0%;
}
.pullUp{
animation-name: pullUp;
-webkit-animation-name: pullUp;
animation-duration: 1.1s;
-webkit-animation-duration: 1.1s;
animation-timing-function: ease-out;
-webkit-animation-timing-function: ease-out;
transform-origin: 50% 100%;
-ms-transform-origin: 50% 100%;
-webkit-transform-origin: 50% 100%;
}
#keyframes pullUp {
0% {
transform: scaleY(0.1);
}
40% {
transform: scaleY(1.02);
}
60% {
transform: scaleY(0.98);
}
80% {
transform: scaleY(1.01);
}
100% {
transform: scaleY(0.98);
}
80% {
transform: scaleY(1.01);
}
100% {
transform: scaleY(1);
}
}
#-webkit-keyframes pullUp {
0% {
-webkit-transform: scaleY(0.1);
}
40% {
-webkit-transform: scaleY(1.02);
}
60% {
-webkit-transform: scaleY(0.98);
}
80% {
-webkit-transform: scaleY(1.01);
}
100% {
-webkit-transform: scaleY(0.98);
}
80% {
-webkit-transform: scaleY(1.01);
}
100% {
-webkit-transform: scaleY(1);
}
}
There are a few options I can recommend:
Use CSS's :active selector to bind to the hash of the "pulldown" item:
```
second-page:active ~ .drawer {
animation: "pullUp" 1s linear;
}
```
So that when the user clicks on the url to your second page (#second-page), the animation will trigger, thus hiding the drawer itself.
Use Javascript to toggle classes:
(jQuery)
var $drawer = $(".drawer");
var $drawerToggle = $(".drawer-toggle").on("click", function() {
$drawer.toggle("fast");
}
Use an input[type="checkbox"] 'hack':
.drawer-toggle:checked ~ .drawer {
animation: "pullDown" 1s linear;
}
.drawer-toggle ~ .drawer {
animation: "pullUp" 1s linear;
}
Here is my code http://codepen.io/anon/pen/zrXrXM but as i told, when i click on <a> element, page transition is instantly. Is there any possible way to stop transition for a few seccond ?
I want a bar for the bottom of my webpage that has a nice animation, similar to this one: http://css-tricks.com/pop-from-top-notification/ but stays on screen until it is closed. This is all the css I have so far:
.about {
background: black;
text-align: left;
position: fixed;
z-index: 100;
bottom: 0;
left: 0;
width: 100%;
color: #0f0;
font-size: 21px;
font-family: Timeburner;
padding: 10px;
}
I don't care if it takes jquery or somthing else, as long as it works.
you need to add this css:
#-webkit-keyframes slideUp {
0% { -webkit-transform: translateY(50px); }
100% { -webkit-transform: translateY(0px); }
}
#-moz-keyframes slideUp {
0% { -moz-transform: translateY(50px); }
100% { -moz-transform: translateY(0px); }
}
#note {
-webkit-transform: translateY(-50px);
-webkit-animation: slideUp 2.5s 1.0s 1 ease forwards;
-moz-transform: translateY(-50px);
-moz-animation: slideUp 2.5s 1.0s 1 ease forwards;
}
here is the Fiddle Demo
here is your example with the Css animation: Fiddle (you will need to add the JS for the close button)
here is and example with slide down on close: Fiddle it uses Jquery but can also be done using pure JS:
close = document.getElementById("close");
close.addEventListener('click', function() {
$("#note").slideUp();
}, false);
I'm trying to scale an element that's in an animation on hover. My animation consists of three elements
li{
&.current-projects {
-webkit-animation: first 5s infinite ease-in-out;
animation: first 5s infinite ease-in-out;
}
&.secret {
-webkit-animation: second 5s infinite ease-in-out;
animation: second 5s infinite ease-in-out;
}
&.favorite {
-webkit-animation: third 5s infinite ease-in-out;
animation: third 5s infinite ease-in-out;
}
&:hover {
-webkit-transform: scale(1.2);
transform: scale(1.2);
-webkit-filter: brightness(80%);
filter: brightness(80%);
}
}
in each of my animations the transform method is called.
#-webkit-keyframes first {
0% {
-webkit-transform: translateX(50%);
transform: translateX(50%);
right: 50%;
top: 0%;
}
33% {
-webkit-transform: translateY(-100%);
transform: translateY(-100%);
right: 0;
top: 100%;
}
66% {
-webkit-transform: translate(100%, -100%);
transform: translate(100%, -100%);
top: 100%;
right: 100%;
}
100% {
-webkit-transform: translateX(50%);
transform: translateX(50%);
right: 50%;
top: 0%;
}
}
My problem, is on hover I have set the images to freeze in place on hover of one of them, but I cannot get it to scale. It seems to be from having transforms in my animation (the brightness works but no scale), is there a way I can scale these using css or js and have them actually scale?
http://cdpn.io/oKpBh
I tried out something but I am not sure if this what you wanted: http://codepen.io/nighrage/pen/qywCi/
The animations on the li seem to stop the object from scaling up. So the trick that you can do is add animations on the li and add the background to the a tag and give the link a height and width of 6em.
http://codepen.io/nighrage/pen/ExvHq/
I didnt polish up the code but I am sure that you would be able to do that.