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Toggling between classes keeps animation from going through, just skips to end

I'm trying to animate a hamburger menu by having the bottom and top line translate to the middle and then rotate into an X and want to reverse the animation when the X is clicked. Using jquery I'm toggling the class menu-open and menu-closed. When I remove the CSS for the menu-closed animation, it fires just fine but when I add the CSS back the animations just skip to the last frame. It forms what I want but just refuses to use the animation fully.
CSS
.navbar .mobile-menu.menu-open .line::before {
animation: menu-open-top 250ms linear forwards;
}
.navbar .mobile-menu.menu-open .line {
animation: menu-middle 250ms linear forwards;
}
.navbar .mobile-menu.menu-open .line::after {
animation: menu-open-bottom 250ms linear forwards;
}
.navbar .mobile-menu.menu-closed .line::before {
animation: menu-open-top 250ms linear reverse;
}
.navbar .mobile-menu.menu-closed .line {
animation: menu-middle 250ms linear reverse;
}
.navbar .mobile-menu.menu-closed .line::after {
animation: menu-open-bottom 250ms linear reverse;
}
Animation
#keyframes menu-open-top {
30% {
bottom: 0;
}
60% {
bottom: 0;
transform: rotate(0) translate(0);
}
100% {
transform: rotate(45deg) translate(5px, 5px);
visibility: visible;
}
}
#keyframes menu-middle {
40% {
visibility: hidden;
}
to {
visibility: hidden;
}
}
#keyframes menu-open-bottom {
30% {
top: 0;
}
60% {
top: 0;
transform: rotate(0) translate(0);
}
100% {
transform: rotate(-45deg) translate(6px, -6px);
visibility: visible;
}
}
JS
$(".mobile-menu").click(expandMenu);
function expandMenu() {
$(".primary-nav").toggleClass("menu-expand");
$(this).toggleClass("menu-open menu-closed");
}
I must be missing something or maybe I need to add new keyframes for the reverse animation but that feels like it would be unnecessary.
edit: here is the html as well
HTML
<div class="mobile-menu menu-closed">
<div class="line"></div>
</div>

Here's how to do it using simple prop value changes with careful timing. I guess it can be done using #keyframe animations as well, but I find them more difficult to follow/control/sync, at least in this case, considering it's (basically) a two-step animation.
document.querySelector('.mobile-menu').addEventListener('click', ({
target
}) => {
target.closest('.mobile-menu').classList.toggle('menu-open');
})
.mobile-menu {
--duration: 0.42s;
--size: 3rem;
--padding: 0.5rem;
--color: red;
--distance-timing: cubic-bezier(0.5, 0, 0.3, 1);
--rotation-timing: cubic-bezier(0.4, 0, 0.2, 1);
width: var(--size);
height: var(--size);
padding: var(--padding);
display: flex;
flex-direction: column;
justify-content: space-between;
cursor: pointer;
}
.mobile-menu * {
box-sizing: border-box;
}
.mobile-menu>div {
border: 1px solid var(--color);
height: 0;
width: 100%;
position: relative;
transform-origin: 50% 50%;
transition:
top calc(0.6 * var(--duration)) var(--distance-timing) calc(0.4 * var(--duration)),
bottom calc(0.6 * var(--duration)) var(--distance-timing) calc(0.4 * var(--duration)),
transform calc(0.8 * var(--duration)) var(--rotation-timing) 0s;
}
.mobile-menu> :nth-child(1) {
top: calc(var(--padding)/2);
}
.mobile-menu> :nth-child(3) {
bottom: calc(var(--padding)/2);
}
.mobile-menu.menu-open>div {
transition:
top calc(0.4 * var(--duration)) var(--distance-timing) 0s,
bottom calc(0.4 * var(--duration)) var(--distance-timing) 0s,
transform calc(0.8 * var(--duration)) var(--rotation-timing) calc(0.2 * var(--duration));
}
.mobile-menu.menu-open> :nth-child(1) {
top: calc(50% - 1px);
transform: rotate(0.125turn);
}
.mobile-menu.menu-open> :nth-child(2) {
transform: rotate(0.125turn);
}
.mobile-menu.menu-open> :nth-child(3) {
bottom: calc(50% - 1px);
transform: rotate(-0.125turn);
}
<div class="mobile-menu">
<div></div>
<div></div>
<div></div>
</div>
Same thing, in SCSS: https://jsfiddle.net/websiter/dybre2f9/
I've extracted the values into CSS vars, so it can be reused and modified with ease. Feel free to tweak it to your liking.
Note: the reason why I'm using bottom and top to animate the movement (and not translateY - which is slightly more performant) is because I wanted the two animations to be completely independent of each other, to allow me to play with various overlapping values and timing functions. What I've come up with doesn't respect the requirement 100% (as in, it slightly overlaps the rotation with the movement - but I'm doing it on purpose, as not overlapping them looks too mechanical). When overlapped, the entire animation seems more organic. It's like the button is alive and happy to have been asked to do the animation. Or maybe I'm just a bit crazy, I don't know...

How to stop a text animation from moving the logo when the text appears

I am making a mental health website. on the homepage of the website I have chosen to make a text that is animated as opposed to being static, just to make the website more lively and appealing.
this is what it looks like when the text appears.
The horizontal overflow is hidden, so the logo on the side is out of the page because the text has stretched.
How can I fix this?
// sets the interval for which the function will run, in this case 8 seconds, (8000)
setInterval(function() {
// grab all elements with class 'sub-head' and stores it in the elems const.
const elems = document.querySelectorAll('.sub-head')
// loop through the found elements
elems.forEach(e => {
// check if the element has a class 'inactive', if there is one, remove it
if (e.classList.contains('inactive')) e.classList.remove('inactive')
// if not, add it. This is how it creates a loop.
else e.classList.add('inactive');
});
}, 8000)
/* The animation text*/
.intro {
display: inline-flex;
overflow: hidden;
white-space: nowrap;
}
.intro1 {
animation: showup 7s;
font-family: Arial, Helvetica, sans-serif;
font-size: 40px;
color: purple;
}
.intro2 {
width: 0px;
animation: reveal 7s infinite;
}
.inactive {
display: none;
}
.sub-head {
margin-left: -355px;
animation: slidein 7s infinite;
font-size: 30px;
font-family: Arial, Helvetica, sans-serif;
}
#keyframes showup {
0% {
opacity: 0;
}
20% {
opacity: .4;
}
80% {
opacity: .8;
}
100% {
opacity: 1;
}
}
#keyframes slidein {
0% {
margin-left: -800px;
}
20% {
margin-left: -800px;
}
35% {
margin-left: 0px;
}
100% {
margin-left: 0px;
}
}
#keyframes reveal {
0% {
opacity: 0;
width: 0px;
}
20% {
opacity: 1;
width: 0px;
}
30% {
width: 800px;
}
80% {
opacity: 1;
}
100% {
opacity: 0;
width: 800px;
}
}
<div class="first-box">
<div class="intro intro1">Welcome!</div>
<div class="intro intro2">
<span class="sub-head "> We care about you</span>
<span class="sub-head inactive">becuase you matter</span>
<!-- lol dramatic effect-->
</div>
</div>

I think the problem was you're setting so much width that the image/logo will also be affected by the width that you have set.
SOLUTION:
Set a static width on your .intro2 class for example 300px or reasonable width that will only fit your static content.
.intro2 {
width: 300px;
animation: reveal 7s infinite;
}
You can check on this pen https://codepen.io/Preygremmer15/pen/MWoJBzv

Play new css animation seamlessly

I created a simple HTML game, which disappears under the screen when I click on a moving box.
However, the animation that disappears starts at the original location, not where it was clicked.
I think 0% of the remove #keyframes should have the location of the click, but I couldn't find a way
How shall I do it?
(function () {
const charactersGroup = document.querySelectorAll('.character');
const stage = document.querySelector('.stage')
const clickHandler = (e) => {
const target = e.target;
if (target.classList.contains('character')) {
target.classList.remove(`f${target.dataset.id}`);
target.classList.add('f0');
target.classList.add('remove');
setTimeout(() => { stage.removeChild(target) }, 2000);
}
}
stage.addEventListener('click', clickHandler);
}());
.stage {
overflow: hidden;
position: relative;
background: #eeeeaa;
width: 40vw;
height: 20vw;
}
#keyframes moving {
0% {
transform: translateX(0);
}
100% {
transform: translateX(30vw);
}
}
#keyframes remove {
0% {
transform: translate(0);
}
100% {
transform: translateY(60vw);
}
}
.character {
position: absolute;
width: 50px;
height: 50px;
background-repeat: no-repeat;
background-position: 50% 50%;
background-size: contain;
animation: moving infinite alternate;
}
.remove {
animation: remove 0.2s cubic-bezier(.68,-0.55,.27,1.55) forwards;
}
.f0 {
background-color: black;
animation-duration: 2s;
}
.f1 {
left: 5%;
bottom: 5%;
animation-duration: 2s;
background-color: red;
}
<div class="stage">
<div class="character f1" data-id="1"></div>
</div>

Change the first animation to consider left instead of translate then append both of them to the element initially and you simply toggle the animation-play-state when adding the remove class
(function() {
const charactersGroup = document.querySelectorAll('.character');
const stage = document.querySelector('.stage')
const clickHandler = (e) => {
const target = e.target;
if (target.classList.contains('character')) {
target.classList.add('remove');
setTimeout(() => {
stage.removeChild(target)
}, 2000);
}
}
stage.addEventListener('click', clickHandler);
}());
.stage {
overflow: hidden;
position: relative;
background: #eeeeaa;
width: 40vw;
height: 20vw;
}
#keyframes moving {
100% {
left:calc(95% - 50px);
}
}
#keyframes remove {
50% {
transform: translateY(-30vh);
}
100% {
transform: translateY(60vw);
}
}
.character {
position: absolute;
width: 50px;
height: 50px;
background:red;
left: 5%;
bottom: 5%;
animation:
moving 2s infinite alternate,
remove 1s cubic-bezier(.68, -0.55, .27, 1.55) forwards paused;
}
.remove {
animation-play-state:paused,running;
background: black;
}
<div class="stage">
<div class="character f1" data-id="1"></div>
</div>

If your use case is to deal with a lot of such boxes and complexity, it's better to go with handling everything with pure JS but I tried to make this work with minimal changes in JS and CSS.
I have added comments to the new JS lines.
Also taken the liberty to have a separate class with name moving for animation moving so that we can remove it on click.
(function () {
const charactersGroup = document.querySelectorAll('.character');
const stage = document.querySelector('.stage')
const clickHandler = (e) => {
const target = e.target;
if (target.classList.contains('character')) {
target.classList.remove(`f${target.dataset.id}`);
target.classList.add('f0');
// remove the moving animation
target.classList.remove('moving');
// Get offsetWidth which is the half of width to substract later while calculating left for the target i.e our box.
const offsetWidth = parseInt(getComputedStyle(target).width)/2;
// e.clientX gives us the x coordinate of the mouse pointer
// target.getBoundingClientRect().left gives us left position of the bounding rectangle and acts as a good offset to get the accurate left for our box.
target.style.left = `${e.clientX -target.getBoundingClientRect().left - offsetWidth}px`;
target.classList.add('remove');
setTimeout(() => { stage.removeChild(target) }, 2000);
}
}
stage.addEventListener('click', clickHandler);
}());
.stage {
overflow: hidden;
position: relative;
background: #eeeeaa;
width: 40vw;
height: 20vw;
}
#keyframes moving {
0% {
transform: translateX(0);
}
100% {
transform: translateX(30vw);
}
}
#keyframes remove {
0% {
transform: translate(0vh);
}
100% {
transform: translateY(60vw);
}
}
.character {
position: absolute;
width: 50px;
height: 50px;
background-repeat: no-repeat;
background-position: 50% 50%;
background-size: contain;
}
.moving{
animation: moving infinite alternate;
}
.remove {
animation: remove 0.2s cubic-bezier(.68,-0.55,.27,1.55) forwards;
}
.f0 {
background-color: black;
animation-duration: 2s;
}
.f1 {
left: 5%;
bottom: 5%;
animation-duration: 2s;
background-color: red;
}
<div class="stage">
<div class="character moving f1" data-id="1"></div>
</div>

Bounce animation on a scaled object

What is the best way to have an object scale and then perform a bounce animation at that scale factor before going back to the original scale factor. I realize I could do something like scaling it to 2.2, then 1.8, then 2.0, but I'm looking for a way where you just have to perform the bounce animation on the scale factor because my scale factor will change.
Here is my example. Basically I want to combine the two to work like I said but as you can see the bounce animation performs based off the image size prior to scaling.
I need all sides of the image to bounce equally, like the example.
function myFunction() {
var image = document.getElementById('test');
image.style.WebkitTransform = ('scale(2,2)');
image.classList.remove('bounce');
image.offsetWidth = image.offsetWidth;
image.classList.add('bounce') ;
}
div#test {
position:relative;
display: block;
width: 50px;
height: 50px;
background-color: blue;
margin: 50px auto;
transition-duration: 1s;
}
.bounce {
animation: bounce 450ms;
animation-timing-function: linear;
}
#keyframes bounce{
25%{transform: scale(1.15);}
50%{transform: scale(0.9);}
75%{transform: scale(1.1);}
100%{transform: scale(1.0);}
}
<div id='test'> </div>
<button class = 'butt' onclick = 'myFunction()'>FIRST</button>

You can try the use of CSS variable in order to make the scale factor dynamic within the keyframe:
function myFunction(id,s) {
var image = document.querySelectorAll('.test')[id];
image.style.setProperty("--s", s);
image.classList.remove('bounce');
image.offsetWidth = image.offsetWidth;
image.classList.add('bounce');
}
div.test {
display: inline-block;
width: 50px;
height: 50px;
background-color: blue;
margin: 50px;
transform:scale(var(--s,1));
}
.bounce {
animation: bounce 450ms;
animation-timing-function: linear;
}
#keyframes bounce {
25% {
transform: scale(calc(var(--s,1) + 0.2));
}
50% {
transform: scale(calc(var(--s,1) - 0.1));
}
75% {
transform: scale(calc(var(--s,1) + 0.1));
}
100% {
transform: scale(var(--s,1));
}
}
<div class='test'> </div>
<div class='test'> </div>
<div class='test'> </div>
<div>
<button class='butt' onclick='myFunction(0,"2")'>first</button>
<button class='butt' onclick='myFunction(1,"3")'>Second</button>
<button class='butt' onclick='myFunction(2,"0.5")'>third</button>
<button class='butt' onclick='myFunction(1,"1")'>second again</button>
</div>

Dispatch each transform on a different wrapping element.
This way you can achieve several level of transforms, all relative to their parent wrapper.
Then you just need to set your animation to fire after a delay equal to the transition's duration:
btn.onclick = e => {
// in order to have two directions, we need to be a bit verbose in here...
const test = document.querySelector('.test');
const classList = test.classList;
const state = classList.contains('zoomed-in');
// first remove previous
classList.remove('zoomed-' + (state ? 'in' : 'out'));
// force reflow
test.offsetWidth;
// set new one
classList.add('zoomed-' + (state ? 'out' : 'in'));
};
div.test {
position: relative;
display: inline-block;
margin: 50px 50px;
}
div.test div{
width: 100%;
height: 100%;
transition: transform 1s;
}
div.test.zoomed-in .scaler {
transform: scale(2);
}
div.test.zoomed-in .bouncer,
div.test.zoomed-out .bouncer {
animation: bounce .25s 1s;/* transition's duration delay */
}
div.test .inner {
background-color: blue;
width: 50px;
height: 50px;
}
#keyframes bounce {
0% {
transform: scale(1.15);
}
33% {
transform: scale(0.9);
}
66% {
transform: scale(1.1);
}
100% {
transform: scale(1.0);
}
}
<div class="test">
<div class="scaler">
<div class="bouncer">
<div class="inner"></div>
</div>
</div>
</div>
<button id="btn">toggle zoom</button>

Webkit Keyframes: Calculate translate amount using JavaScript or other

Take a look at this simple JsFiddle I created.
What it does is simply inserts a new li element with a slide effect from left, when the ul display is on flex and inline-block.
Something similar to that is Stackoverflow chat avatars when someone joins.
#-webkit-keyframes enter {
0% { /*opacity:0;*/ -webkit-transform: translateX(-100%); }
100% { /*opacity:1;*/ -webkit-transform: translateX(0px); }
}
#-webkit-keyframes moves {
0% { /*opacity:0;*/ -webkit-transform: translateX(-50px); }
100% { /*opacity:1;*/ -webkit-transform: translateX(0px); }
}
in my enter animation, I start with translate -100% because I want my item come from left distanced by his size.
and in the moves animation, I want to move the whole ul to the right, by the size of the entering element.
Now I set it hard-coded, to 50px because my elements are set to 50px:
li {
width: 50px;
height: 50px;
display: inline-block;
background-color: red;
}
How can I make it calculate the width OR height automatically, on how much to translate the ul?
Example: Calculate these 50px automatically

You can do this by animating only the added element by using negative margin:
setTimeout(() => {
var item = $("<li></li>").addClass("enter");
$("ul").prepend(item).addClass('move');
}, 2000);
ul {
display: flex;
transition-timing-function: ease-out;
transition: all .2s;
}
li {
--h:50px;
width: 50px;
height: var(--h);
display: inline-block;
background-color: red;
}
.enter {
animation: enter 1s;
}
#keyframes enter {
0% {
transform: translateX(-100%);
margin-left: calc(var(--h) * -1);
}
100% {
transform: translateX(0px);
margin-left: 0
}
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li class="my-flex-thing">a</li>
<li class="my-flex-thing">b</li>
</ul>