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Adding shine animation not working in special cases

I have this function to shine any text element which is passed to it.
The first example here works fine (the second example doesn't work, I provide this in case this can help us find out the issue):
function Shine(textElement) {
textElement.classList.remove("shine");
setTimeout(() => textElement.classList.add("shine"), 20);
textElement.addEventListener("webkitAnimationEnd", shineEnd);
function shineEnd(e) {
if (e.animationName === 'shine') {
//textElement.classList.remove("shine");
textElement.removeEventListener("webkitAnimationEnd", shineEnd);
}
}
}
setTimeout(() => {
const prepareCaption = document.querySelector(".prepareCaption");
Shine(prepareCaption);
}, 2500);
.prepare-container {
position: absolute;
overflow: hidden;
display: flex;
align-items: center;
margin: 0 auto;
left: 2.5%;
height: 20vh;
width: 95%;
z-index: 11;
top: 55vh;
padding-top: 10px;
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
.prepareCaption {
position: relative;
filter: drop-shadow(2px 2px 2px #100021) drop-shadow(1px .05em 1px #0d021a);
text-align: center;
width: 100%;
color: #f8f7fa;
margin: 0 auto;
opacity: 1;
top: 0vh;
transition: top 0.3s ease-in-out, opacity 0.3s ease-in-out;
}
.shine {
background-color: currentColor;
background-image: linear-gradient(-42deg, transparent 0%, transparent 40%, #fff 50%, transparent 60%, transparent 100%);
background-position: -100%, 0%;
background-repeat: no-repeat, repeat;
background-size: 60%;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
animation: shine 4s ease-out 1 forwards;
}
#keyframes shine {
from { background-position: -100%, 0%; }
to { background-position: 200%, 0%; }
}
<div class="prepare-container">
<p class="prepareCaption" style="color: rgb(255, 0, 64); font-family: "Open Sans Semibold"; font-size: 28px;">This is shining</p>
</div>
I expect this function work in any satiation but unfortunately we have this second example in which the function acts wired and doesn't work as expected, here it is:
Note: the shine function is identical in both cases. the only difference is the element I pass to the function.
Here we want to shine the expandCaptionSpan id:
function Shine(textElement) {
textElement.classList.remove("shine");
setTimeout(() => textElement.classList.add("shine"), 20);
textElement.addEventListener("webkitAnimationEnd", shineEnd);
function shineEnd(e) {
if (e.animationName === 'shine') {
//textElement.classList.remove("shine");
textElement.removeEventListener("webkitAnimationEnd", shineEnd);
}
}
}
setTimeout(() => {
const expandCaption = document.querySelector("#expandCaptionSpan");
Shine(expandCaption);
}, 2500);
.expandCaption {
position: relative;
font-family: "Open Sans Semibold", sans-serif;
text-shadow: 1px 1px 2px rgba(0, 0, 0, 1);
text-align: center;
width: 100%;
font-size: 4vw;
color: #ff0000;
margin: 0 auto;
opacity: 1;
top: 0vh;
transition: top 0.3s ease-in-out, opacity 0.4s ease-in-out;
}
.arrow {
color: #ff9900;
font-size: 2vw;
}
.arrow-samll {
color: #ff4646;
font-size: 1.5vw;
}
.left-arrow {
padding-right: 7vw;
transition: 1s ease-in-out;
}
.right-arrow {
padding-left: 7vw;
}
.shine {
background-color: currentColor;
background-image: linear-gradient(-42deg, transparent 0%, transparent 40%, #fff 50%, transparent 60%, transparent 100%);
background-position: -100%, 0%;
background-repeat: no-repeat, repeat;
background-size: 60%;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
animation: shine 4s ease-out 1 forwards;
}
#keyframes shine {
from { background-position: -100%, 0%; }
to { background-position: 200%, 0%; }
}
<div class="expand-caption-container">
<p class="expandCaption"><span class="left-arrow arrow-samll">‹</span>
<span id="expandCaptionSpan">Permafrost</span><span class="right-arrow arrow-samll">›</span></p>
</div>
How can I fix the second example? What am I missing?

It seems that your JS is the same but CSS not. I've found that text-shadow is causing the issue. Just replace it with filter as it's done in your first example and it works. It seems that the issue is caused by render system.
function Shine(textElement) {
textElement.classList.remove("shine");
setTimeout(() => textElement.classList.add("shine"), 20);
textElement.addEventListener("webkitAnimationEnd", shineEnd);
function shineEnd(e) {
if (e.animationName === 'shine') {
//textElement.classList.remove("shine");
textElement.removeEventListener("webkitAnimationEnd", shineEnd);
}
}
}
setTimeout(() => {
const expandCaption = document.querySelector("#expandCaptionSpan");
Shine(expandCaption);
}, 2500);
.expandCaption {
position: relative;
font-family: "Open Sans Semibold", sans-serif;
/*text-shadow: 1px 1px 2px rgba(0, 0, 0, 1);*/
filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 1));
text-align: center;
width: 100%;
font-size: 4vw;
color: #ff0000;
margin: 0 auto;
opacity: 1;
top: 0vh;
transition: top 0.3s ease-in-out, opacity 0.4s ease-in-out;
}
.arrow {
color: #ff9900;
font-size: 2vw;
}
.arrow-samll {
color: #ff4646;
font-size: 1.5vw;
}
.left-arrow {
padding-right: 7vw;
transition: 1s ease-in-out;
}
.right-arrow {
padding-left: 7vw;
}
.shine {
background-color: currentColor;
background-image: linear-gradient(-42deg, transparent 0%, transparent 40%, #fff 50%, transparent 60%, transparent 100%);
background-position: -100%, 0%;
background-repeat: no-repeat, repeat;
background-size: 60%;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
animation: shine 4s ease-out 1 forwards;
}
#keyframes shine {
from { background-position: -100%, 0%; }
to { background-position: 200%, 0%; }
}
<div class="expand-caption-container">
<p class="expandCaption"><span class="left-arrow arrow-samll">‹</span>
<span id="expandCaptionSpan">Permafrost</span><span class="right-arrow arrow-samll">›</span></p>
</div>

How to make bouncy text carousel CSS

The animation that I am trying to replicate:
Here it is at normal speed:
Here it is at slower speed, so you can see the animation more clearly (I hope)
Essentially, it bounces off once at text4, and once at text5.
I am new with animations, so if anyone has any recommendation on how to approach this, it would greatly be appreciated.
Here is what I have so far: Fiddle

You can make a gravity-like cubic-bezier to imitate the bounce effect. You will apply this cubic-bezier per keyframe to mimic acceleration/deceleration like real-life gravity. You can use this cubic-bezier generator to create the acceleration/deceleration you like.
Here's a runnable solution with the compiled CSS. Here's the link with the SCSS code.
.loading {
width: 100%;
height: 100%;
top: 0;
left: 0;
position: absolute;
display: flex;
align-items: center;
justify-content: center;
background-color: #000;
color: white;
font-weight: bold;
text-align: center;
transition: all .35s ease-in-out;
}
.loading_carousel {
font-size: 55.02px;
line-height: 55.02px;
position: relative;
width: 100%;
text-align: center;
}
.loading_options {
position: relative;
}
.loading_options.rotate {
animation: 2s linear 1s infinite rotate;
animation-delay: 2s;
}
.loading_element {
display: block;
font-weight: 700;
}
.loading_shuffle {
text-align: center;
height: 55.02px;
overflow: hidden;
mask: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, black 25%, black 75%, rgba(0, 0, 0, 0) 100%);
}
#keyframes rotate {
0% {
transform: translateY(0px);
animation-timing-function: cubic-bezier(0.5, 0.36, 0.9, 0.83); /*Accelerate*/
}
30% {
transform: translateY(-240.08px);
animation-timing-function: cubic-bezier(0.17, 0.4, 0.33, 0.94); /*Decelerate*/
}
46.667% {
transform: translateY(-165.06px);
animation-timing-function: cubic-bezier(0.5, 0.36, 0.9, 0.83);
}
62% {
transform: translateY(-220.08px);
animation-timing-function: cubic-bezier(0.17, 0.4, 0.33, 0.94);
}
78% {
transform: translateY(-198.072px);
animation-timing-function: cubic-bezier(0.5, 0.36, 0.9, 0.83);
}
88%, 100% {
transform: translateY(-220.08px);
}
}
<div id="loading" class="loading">
<div class="loading_carousel">
<div class="loading_shuffle">
<div class="loading_options rotate">
<div class="loading_element">text1</div>
<div class="loading_element">text2</div>
<div class="loading_element">text3</div>
<div class="loading_element">text4</div>
<div class="loading_element">text5</div>
</div>
</div>
</div>
</div>

Not perfect but close :)
Overall the animation goes like this: Text1 -> Text 5 -> Text 4 -> Text 5 -> Inbetween 4 and 5 -> Text 5
And that's basically your keyframes also I've added the same translate for 50% and 52% which would make it stop for a while at "Text 4"
The rest is mostly adjusting the numbers. (For example I've changed the animation time from 2s to 3s)
.loading {
width: 100%;
height: 100%;
top: 0;
left: 0;
position: fixed;
display: -webkit-box;
display: flex;
-webkit-box-align: center;
align-items: center;
-webkit-box-pack: center;
justify-content: center;
opacity: 1;
background-color: rebeccapurple;
color: white;
font-weight: bold;
z-index: 13000;
text-align: center;
-webkit-transform-origin: left;
transform-origin: left;
-webkit-transition: all .35s ease-in-out;
transition: all .35s ease-in-out;
}
.loading_carousel {
font-size: 55.02px;
line-height: 55.02px;
height: 55.02px;
position: relative;
width: 100%;
text-align: center;
}
.loading_options {
position: relative;
}
.loading_options.rotate {
animation: rotate 3s 1s linear infinite;
}
.loading_element {
display: block;
font-weight: 700;
}
.loading_shuffle {
position: absolute;
top: 0;
left: 52%;
text-align: left;
height: 55.02px;
overflow: hidden;
margin-left: -25px;
opacity: 1;
}
.loading_shuffle:before, .loading_shuffle:after {
content: '';
background: -webkit-gradient(linear, left bottom, left top, from(rgba(0, 0, 0, 0)), to(#482078));
background: linear-gradient(to top, rgba(0, 0, 0, 0), #482078);
width: 100%;
height: 15px;
position: absolute;
top: 0;
left: 0;
z-index: 2;
}
.loading_shuffle:after {
top: auto;
bottom: -3px;
background: -webkit-gradient(linear, left top, left bottom, from(rgba(0, 0, 0, 0)), to(#482078));
background: linear-gradient(to bottom, rgba(0, 0, 0, 0), #482078);
}
#keyframes rotate {
0% {
-webkit-transform: translateY(0);
transform: translateY(0);
}
25% {
-webkit-transform: translateY(-220.08px);
transform: translateY(-220.08px);
}
50%, 52% {
-webkit-transform: translateY(-165px);
transform: translateY(-165px);
}
80% {
-webkit-transform: translateY(-195px);
transform: translateY(-195px);
}
70%, 100% {
-webkit-transform: translateY(-220.08px);
transform: translateY(-220.08px);
}
}
<div id="loading" class="loading">
<div class="loading_carousel">
<div class="loading_shuffle">
<div class="loading_options rotate">
<div class="loading_element">text1</div>
<div class="loading_element">text2</div>
<div class="loading_element">text3</div>
<div class="loading_element">text4</div>
<div class="loading_element">text5</div>
</div>
</div>
</div>
</div>

How do start CSS animation on click?

I'm fairly new to front-end dev so please spare me...Anyway, for this codepen project I'm trying to get the animation where a stack of pancakes falls to the plate to activate when you click the button. It should be just an empty plate until the button is clicked.
Not sure why my JS code isn't working but if I target the pancake or stack class, the visuals still remain static.
HTML:
<div class="container">
<div class="plate">
<div class="inner-plate">
</div>
</div>
<button onclick="onclick()">Good Morning!</button>
<div class="stack">
<div class="pancake">
<div class="top-p"></div>
</div>
<div class="pancake p2">
<div class="top-p"></div>
</div>
<div class="pancake p3">
<div class="top-p"></div>
</div>
<div class="pancake p4">
<div class="top-p"></div>
</div>
<div class="pancake p5">
<div class="top-p"></div>
</div>
<div class="pancake p6">
<div class="top-p"></div>
<div class="butter">
<div class = "shadow"></div>
<div class = "top-b"></div>
<div class = "shine"></div>
</div>
</div>
</div>
CSS (snippet):
/*------BUTTON------*/
button {
display: inline-block;
border: none;
margin-top: 25%;
padding: 1em 2em;
/*CSS center element trick*/
position: absolute;
/* Gradient */
background: linear-gradient(90deg, #FF5F6D 0%, rgba(255, 195, 113, 0.88) 100%);
box-shadow: 0px 4px 10px rgba(255, 95, 109, 0.25);
border-radius: 40px;
/*text*/
position: relative;
text-transform: uppercase;
font-family: Montserrat, system-ui;
font-style: normal;
font-weight: 600;
font-size: 14px;
line-height: 15px;
letter-spacing: 0.14px;
color: #fff;
cursor: pointer;
transition: all 0.1s linear;
}
button:hover {
transform: translateY(-6px);
background: linear-gradient(90deg, #FF777C 0%, #FFC487 100%);
box-shadow: 0px 6px 5px rgba(255, 95, 109, 0.25);
}
.plate {
position: relative;
width: 100%;
height: 100%;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
box-shadow: 0px 4px 4px rgba(165, 75, 75, 0.15);
}
.inner-plate {
position: relative;
width: 75%;
height: 30px;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
margin: 5px auto; /*stacked "plates" without flexboxes*/
}
/*------ELEMENTS TO ANIMATE------*/
.pancake {
display: inline-block;
position: absolute;
width: 65%;
height: 25%;
left: 18%;
top: 0;
background: #FFE68E;
border-radius: 50%;
z-index: 1;
}
.top-p {
position: absolute;
width: 95%;
height: 80%;
left: 2.25%;
background: linear-gradient(180deg, rgba(222, 159, 101, 0.75) 0%, #E09148 100%);
border-radius: 50%;
}
.slideIn {
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
}
/*------ KEYFRAMES -----*/
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
JS:
$(function() {
$('button').onclick(function() {
$('.pancake').addClass('slideIn');
});
})

There are a bunch of things are not right, I've fixed them and marked them with FIX
$(function() {
$('button').click(function() {
// FIX: you forgot the dot
$('.pancake').addClass('slideIn');
});
});
#import url('https://fonts.googleapis.com/css?family=Montserrat:600&display=swap');
* {
outline: none;
/*NOTE: removing the blue outline for links and buttons is a terrible UI/UX decision for accessibility! Some folks do not have the motor skills to use a mouse and use the alternative Tab button instead. This is purely just for show and practice :-) */
}
body {
position: relative;
height: 100vh;
padding: 0;
margin: 0;
background: #FDF6D0;
display: flex;
align-items: center;
text-align: center;
}
.container{
position: absolute;
margin-top: auto;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
align-items: center;
}
/*------BUTTON------*/
button {
display: inline-block;
border: none;
margin-top: 25%;
padding: 1em 2em;
/*CSS center element trick*/
position: absolute;
/* Gradient */
background: linear-gradient(90deg, #FF5F6D 0%, rgba(255, 195, 113, 0.88) 100%);
box-shadow: 0px 4px 10px rgba(255, 95, 109, 0.25);
border-radius: 40px;
/*text*/
position: relative;
text-transform: uppercase;
font-family: Montserrat, system-ui;
font-style: normal;
font-weight: 600;
font-size: 14px;
line-height: 15px;
letter-spacing: 0.14px;
color: #fff;
cursor: pointer;
transition: all 0.1s linear;
}
button:hover {
transform: translateY(-6px);
background: linear-gradient(90deg, #FF777C 0%, #FFC487 100%);
box-shadow: 0px 6px 5px rgba(255, 95, 109, 0.25);
}
.plate {
position: relative;
width: 100%;
height: 100%;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
box-shadow: 0px 4px 4px rgba(165, 75, 75, 0.15);
}
.inner-plate {
position: relative;
width: 75%;
height: 30px;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
margin: 5px auto; /*stacked "plates" without flexboxes*/
}
/*------ELEMENTS TO ANIMATE------*/
.pancake {
display: inline-block;
position: absolute;
width: 65%;
height: 25%;
left: 18%;
top: 0;
background: #FFE68E;
border-radius: 50%;
z-index: 1;
/*pancakes falling*/
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
/* FIX: Pause the animation on start */
animation-play-state: paused;
}
/* FIX: Resume the animation when this class is added */
.slideIn {
animation-play-state: running;
}
.top-p {
position: absolute;
width: 95%;
height: 80%;
left: 2.25%;
background: linear-gradient(180deg, rgba(222, 159, 101, 0.75) 0%, #E09148 100%);
border-radius: 50%;
}
.p2 {
z-index: 2;
top: -7%;
left: 18%;
}
.p3 {
z-index: 3;
top: -14%;
left: 18%;
}
.p4 {
z-index: 4;
top: -21%;
left: 18%;
}
.p5 {
z-index: 5;
top: -28%;
left: 18%;
}
.p6 {
z-index: 6;
top: -35%;
left: 18%;
}
/*BUTTER*/
.shadow {
position: absolute;
z-index: 8;
top: -7%;
left: 42%;
height: 30%;
width: 15%;
margin: auto;
background: #FFDE68;
border-radius: 1px;
box-shadow: 1px 2px 2px rgba(202, 133, 65, 0.75);
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.top-b {
position: absolute;
z-index: 9;
top: -10%;
left: 45%;
height: 25%;
width: 10%;
margin: auto;
background: #FFEFB5;
border-radius: 1px;
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.shine{
position: absolute;
z-index: 10;
top: -4%;
left: 49%;
height: 7%;
width: 4%;
margin: auto;
background: #FFF;
border-radius: 1px;
transform: rotate(45deg);
}
.slideIn {
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
}
/*------ KEYFRAMES -----*/
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
<!-- FIX: You forgot to import the jquery in CodePen! -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<div class="container">
<div class="plate">
<div class="inner-plate">
</div>
</div>
<!-- FIX: You don't need to bind function here since you've already done it in js.-->
<button>Good Morning!</button>
<div class="stack">
<div class="pancake">
<div class="top-p"></div>
</div>
<div class="pancake p2">
<div class="top-p"></div>
</div>
<div class="pancake p3">
<div class="top-p"></div>
</div>
<div class="pancake p4">
<div class="top-p"></div>
</div>
<div class="pancake p5">
<div class="top-p"></div>
</div>
<div class="pancake p6">
<div class="top-p"></div>
<div class="butter">
<div class = "shadow"></div>
<div class = "top-b"></div>
<div class = "shine"></div>
</div>
</div>
</div>

the class identifier is wrong it should be $(".pancake")
$(function() {
$('button').onclick(function() {
$('.pancake').addClass('slideIn');
});
})
javascript

You need to add the class identifier . in $(".pancake")
$(function() {
$('button').click(function() {
$('.pancake').addClass('slideIn');
});
})
#import url('https://fonts.googleapis.com/css?family=Montserrat:600&display=swap');
* {
outline: none;
/*NOTE: removing the blue outline for links and buttons is a terrible UI/UX decision for accessibility! Some folks do not have the motor skills to use a mouse and use the alternative Tab button instead. This is purely just for show and practice :-) */
}
body {
position: relative;
height: 100vh;
padding: 0;
margin: 0;
background: #FDF6D0;
display: flex;
align-items: center;
text-align: center;
}
.container{
position: absolute;
margin-top: auto;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
align-items: center;
}
/*------BUTTON------*/
button {
display: inline-block;
border: none;
margin-top: 25%;
padding: 1em 2em;
/*CSS center element trick*/
position: absolute;
/* Gradient */
background: linear-gradient(90deg, #FF5F6D 0%, rgba(255, 195, 113, 0.88) 100%);
box-shadow: 0px 4px 10px rgba(255, 95, 109, 0.25);
border-radius: 40px;
/*text*/
position: relative;
text-transform: uppercase;
font-family: Montserrat, system-ui;
font-style: normal;
font-weight: 600;
font-size: 14px;
line-height: 15px;
letter-spacing: 0.14px;
color: #fff;
cursor: pointer;
transition: all 0.1s linear;
}
button:hover {
transform: translateY(-6px);
background: linear-gradient(90deg, #FF777C 0%, #FFC487 100%);
box-shadow: 0px 6px 5px rgba(255, 95, 109, 0.25);
}
.plate {
position: relative;
width: 100%;
height: 100%;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
box-shadow: 0px 4px 4px rgba(165, 75, 75, 0.15);
}
.inner-plate {
position: relative;
width: 75%;
height: 30px;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
margin: 5px auto; /*stacked "plates" without flexboxes*/
}
/*------ELEMENTS TO ANIMATE------*/
.pancake {
display: inline-block;
position: absolute;
width: 65%;
height: 25%;
left: 18%;
top: 0;
background: #FFE68E;
border-radius: 50%;
z-index: 1;
/*pancakes falling*/
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
}
.top-p {
position: absolute;
width: 95%;
height: 80%;
left: 2.25%;
background: linear-gradient(180deg, rgba(222, 159, 101, 0.75) 0%, #E09148 100%);
border-radius: 50%;
}
.p2 {
z-index: 2;
top: -7%;
left: 18%;
}
.p3 {
z-index: 3;
top: -14%;
left: 18%;
}
.p4 {
z-index: 4;
top: -21%;
left: 18%;
}
.p5 {
z-index: 5;
top: -28%;
left: 18%;
}
.p6 {
z-index: 6;
top: -35%;
left: 18%;
}
/*BUTTER*/
.shadow {
position: absolute;
z-index: 8;
top: -7%;
left: 42%;
height: 30%;
width: 15%;
margin: auto;
background: #FFDE68;
border-radius: 1px;
box-shadow: 1px 2px 2px rgba(202, 133, 65, 0.75);
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.top-b {
position: absolute;
z-index: 9;
top: -10%;
left: 45%;
height: 25%;
width: 10%;
margin: auto;
background: #FFEFB5;
border-radius: 1px;
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.shine{
position: absolute;
z-index: 10;
top: -4%;
left: 49%;
height: 7%;
width: 4%;
margin: auto;
background: #FFF;
border-radius: 1px;
transform: rotate(45deg);
}
.slideIn {
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
}
/*------ KEYFRAMES -----*/
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
<div class="plate">
<div class="inner-plate">
</div>
</div>
<button>Good Morning!</button>
<div class="stack">
<div class="pancake">
<div class="top-p"></div>
</div>
<div class="pancake p2">
<div class="top-p"></div>
</div>
<div class="pancake p3">
<div class="top-p"></div>
</div>
<div class="pancake p4">
<div class="top-p"></div>
</div>
<div class="pancake p5">
<div class="top-p"></div>
</div>
<div class="pancake p6">
<div class="top-p"></div>
<div class="butter">
<div class = "shadow"></div>
<div class = "top-b"></div>
<div class = "shine"></div>
</div>
</div>
</div>

Use following js (i remove animation from css .pancake class and add transform: translateY(-1000px); to it)
function onClick() {
[...document.querySelectorAll('.pancake')]
.map(x=> x.classList.add('slideIn'));
}
function onClick() {
[...document.querySelectorAll('.pancake')].map(x=> x.classList.add('slideIn'));
}
#import url('https://fonts.googleapis.com/css?family=Montserrat:600&display=swap');
* {
outline: none;
/*NOTE: removing the blue outline for links and buttons is a terrible UI/UX decision for accessibility! Some folks do not have the motor skills to use a mouse and use the alternative Tab button instead. This is purely just for show and practice :-) */
}
body {
position: relative;
height: 100vh;
padding: 0;
margin: 0;
background: #FDF6D0;
display: flex;
align-items: center;
text-align: center;
}
.container{
position: absolute;
margin-top: auto;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
align-items: center;
}
/*------BUTTON------*/
button {
display: inline-block;
border: none;
margin-top: 25%;
padding: 1em 2em;
/*CSS center element trick*/
position: absolute;
/* Gradient */
background: linear-gradient(90deg, #FF5F6D 0%, rgba(255, 195, 113, 0.88) 100%);
box-shadow: 0px 4px 10px rgba(255, 95, 109, 0.25);
border-radius: 40px;
/*text*/
position: relative;
text-transform: uppercase;
font-family: Montserrat, system-ui;
font-style: normal;
font-weight: 600;
font-size: 14px;
line-height: 15px;
letter-spacing: 0.14px;
color: #fff;
cursor: pointer;
transition: all 0.1s linear;
}
button:hover {
transform: translateY(-6px);
background: linear-gradient(90deg, #FF777C 0%, #FFC487 100%);
box-shadow: 0px 6px 5px rgba(255, 95, 109, 0.25);
}
.plate {
position: relative;
width: 100%;
height: 100%;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
box-shadow: 0px 4px 4px rgba(165, 75, 75, 0.15);
}
.inner-plate {
position: relative;
width: 75%;
height: 30px;
background: #FFFFFF;
/* Stroke */
border: 1.25px solid #F9EADC;
border-radius: 50%;
margin: 5px auto; /*stacked "plates" without flexboxes*/
}
/*------ELEMENTS TO ANIMATE------*/
.pancake {
display: inline-block;
position: absolute;
width: 65%;
height: 25%;
left: 18%;
top: 0;
background: #FFE68E;
border-radius: 50%;
z-index: 1;
/*pancakes falling*/
transform: translateY(-1000px);
}
.top-p {
position: absolute;
width: 95%;
height: 80%;
left: 2.25%;
background: linear-gradient(180deg, rgba(222, 159, 101, 0.75) 0%, #E09148 100%);
border-radius: 50%;
}
.p2 {
z-index: 2;
top: -7%;
left: 18%;
}
.p3 {
z-index: 3;
top: -14%;
left: 18%;
}
.p4 {
z-index: 4;
top: -21%;
left: 18%;
}
.p5 {
z-index: 5;
top: -28%;
left: 18%;
}
.p6 {
z-index: 6;
top: -35%;
left: 18%;
}
/*BUTTER*/
.shadow {
position: absolute;
z-index: 8;
top: -7%;
left: 42%;
height: 30%;
width: 15%;
margin: auto;
background: #FFDE68;
border-radius: 1px;
box-shadow: 1px 2px 2px rgba(202, 133, 65, 0.75);
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.top-b {
position: absolute;
z-index: 9;
top: -10%;
left: 45%;
height: 25%;
width: 10%;
margin: auto;
background: #FFEFB5;
border-radius: 1px;
transform: matrix(0.74, -0.44, 0.98, 0.77, 0, 0);
}
.shine{
position: absolute;
z-index: 10;
top: -4%;
left: 49%;
height: 7%;
width: 4%;
margin: auto;
background: #FFF;
border-radius: 1px;
transform: rotate(45deg);
}
.slideIn {
-webkit-animation: slideIn 1s linear both;
animation: slideIn 1s linear both;
}
/*------ KEYFRAMES -----*/
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#-webkit-keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
#keyframes slideIn {
0% {
-webkit-transform: translateY(-1000px);
transform: translateY(-1000px);
opacity: 0;
}
100% {
-webkit-transform: translateY(0);
transform: translateY(0);
opacity: 1;
}
}
<div class="container">
<div class="plate">
<div class="inner-plate">
</div>
</div>
<button onclick="onClick()">Good Morning!</button>
<div class="stack">
<div class="pancake">
<div class="top-p"></div>
</div>
<div class="pancake p2">
<div class="top-p"></div>
</div>
<div class="pancake p3">
<div class="top-p"></div>
</div>
<div class="pancake p4">
<div class="top-p"></div>
</div>
<div class="pancake p5">
<div class="top-p"></div>
</div>
<div class="pancake p6">
<div class="top-p"></div>
<div class="butter">
<div class = "shadow"></div>
<div class = "top-b"></div>
<div class = "shine"></div>
</div>
</div>
</div>

My webpage seems to work on certain platforms and not on others, the css doesn't get applied, why is this?

Here is a link to my webpage https://taniaswebpages.com/, specifically Website 5 - Snowfall that I am currently working on, the webpage only works for me on Safari on Iphone6s, and doesn't apply the css on Mac Chrome/Safari. But for others it works... why is it changing depending on the type of platform or user?
HTML/CSS:
body.mainpage2 {
margin: 0;
padding: 0;
font-family: lato;
background-color: #e74c3c;
}
.color {
margin-top: 350px;
text-align: center;
}
#hex {
display: block;
color: white;
font-size: 40px;
text-transform: uppercase;
margin: 15px;
letter-spacing: 0.1em;
}
.color button {
background: none;
outline: none;
color: white;
border: 2px solid white;
cursor: pointer;
font-size: 22px;
border-radius: 5px;
box-shadow: 5px 6px 30px 5px #fff;
width: 200px;
}
body.mainpage3 {
background-image: linear-gradient(to right, rgba(255, 0, 0, 0), rgba(221, 106, 95, 0.81));
margin: 0;
padding: 2em 2em 4em;
font-family: Lato;
font-size: 16.5px;
line-height: 24px;
float;
align-content: flex-start;
display: block;
}
input[type=button] {
width: 8%;
border: none;
padding: 8px 8px;
cursor: pointer;
color: palevioletred;
}
.image1 {
position: relative;
right: -400px;
bottom: 600px;
animation: shake 0.9s;
animation-iteration-count: infinite;
}
.image2 {
position: relative;
right: -100px;
bottom: 200px;
animation: shake 0.9s;
animation-iteration-count: infinite;
}
#keyframes shake {
0% {
transform: translate(1px, 1px) rotate(0deg);
}
10% {
transform: translate(-1px, -2px) rotate(-1deg);
}
20% {
transform: translate(-3px, 0px) rotate(1deg);
}
30% {
transform: translate(3px, 2px) rotate(0deg);
}
40% {
transform: translate(1px, -1px) rotate(1deg);
}
50% {
transform: translate(-1px, 2px) rotate(-1deg);
}
60% {
transform: translate(-3px, 1px) rotate(0deg);
}
70% {
transform: translate(3px, 1px) rotate(-1deg);
}
80% {
transform: translate(-1px, -1px) rotate(1deg);
}
90% {
transform: translate(1px, 2px) rotate(0deg);
}
100% {
transform: translate(1px, -2px) rotate(-1deg);
}
}
body.mainpage4 {
margin: 0;
padding: 0;
background-color: darkseagreen;
}
.container1 {
text-align: center;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 100%;
}
.container1 span {
text-transform: uppercase;
display: block;
}
.Words1 {
color: forestgreen;
font-family: monospace;
font-size: 60px;
font-weight: 700;
letter-spacing: 6px;
margin-bottom: 4px;
position: relative;
}
.Words2 {
color: red;
font-family: cursive;
font-size: 40px;
font-weight: 750;
letter-spacing: 2px;
animation: blinkingText 1s linear infinite;
}
#keyframes blinkingText {
0% {
color: #f00;
}
49% {
color: transparent;
}
50% {
color: transparent;
}
99% {
color: transparent;
}
100% {
color: #f00;
}
}
.image {
background-size: cover;
width: 100%;
height: 1000px;
position: relative;
overflow: hidden;
}
.snow1 {
background: url(https://taniaswebpages.com/snow.png);
background-repeat: repeat;
width: 100%;
height: 2000px;
position: absolute;
top: 0;
left: 0;
animation: snowfall 3s infinite linear;
}
.snow2 {
background: url(snow.png);
background-repeat: repeat;
width: 100%;
height: 2000px;
position: absolute;
top: 0;
left: 0;
animation: snowfall 8s infinite linear;
}
#keyframes snowfall {
0% {
background-position: 0px 0px
}
100% {
background-position: 100px 650px
}
}
#keyframes snowfallSecond {
0% {
background-position: 0px -100px
}
100% {
background-position: 0px 650px
}
}
<!DOCTYPE html>
<html>
<head>
<link href="taniaWebsite2.css" type=text/css rel=Stylesheet>
</head>
<body class="mainpage4">
<div class="container1">
<span class="Words1">Merry Christmas</span>
<span class="Words2"> and Happy Holidays!</span>
</div>
<div class="image">
<div class="snow1"></div>
<div class="snow2"></div>
</div>
</body>
</html>

Try changing
<link href="taniaWebsite2.css" type=text/css rel=Stylesheet>
to
<link href="taniaWebsite2.css" type="text/css" rel="stylesheet">
With quotes around the attribute values and all lowercase.

How to scale a DIV element and its children to fit in parent element with CSS3/JavaScript

Overview
I have a #container element which houses a centered element .center.
This web-app will be fullscreen on a number of monitors of various width and height; some portrait and some landscape.
The .center element is significantly smaller than its parent #container, and on larger screens, it sits in the middle with lots of space between the wrapper and the edges, both horizontally and vertically.
Issue
I am trying to figure out a way to expand the .center so that it scales (all its contents scaling equally, including images and font size) until either:
its width is equal to the width of #container, or
its height is equal to the height of #container
I am aware of the CSS3 transform: scale() functions, however as the height and width of the #container is unknown and variable, I don't know how to scale all elements dynamically.
How can this be achieved?
Code
#container {
position: absolute;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
background: rgb(37, 66, 141);
background: -moz-radial-gradient(center, ellipse cover, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
background: -webkit-radial-gradient(center, ellipse cover, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
background: radial-gradient(ellipse at center, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#25428d', endColorstr='#000000', GradientType=1);
}
#wrapper {
padding: 20px;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
position: relative;
height: 100%;
width: 100%;
text-align: center;
z-index: 2;
}
#wrapper .center {
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
position: absolute;
}
* {
color: white;
font-family: "Lato", Helvetica, Arial, sans-serif;
font-weight: 400;
line-height: 1.62em;
}
#logo {
margin: 40px 0;
}
#pulsor {
-webkit-animation: pulsate 60s linear 0s infinite;
-moz-animation: pulsate 60s linear 0s infinite;
-animation: pulsate 60s linear 0s infinite;
text-shadow: 0 0 8px #ccc;
}
#-webkit-keyframes pulsate {
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
}
}
#-moz-keyframes pulsate {
from {
-moz-transform: rotate(0deg);
}
to {
-moz-transform: rotate(360deg);
}
}
#keyframes pulsate {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
body,
html {
margin: 0;
padding: 0;
}
<div id="container">
<div id="overlay"></div>
<div id="wrapper">
<div class="center">
<h1>Tonight at</h1>
<div id="logo"><img src="http://design.ubuntu.com/wp-content/uploads/logo-ubuntu_cof-orange-hex.png" id="pulsor" width="280"></div>
<h2>Theatre</h2>
<p>19:30 - Les Miserables</p>
<p>20:30 - A cheeky Indian take-away</p>
<p></p>
<h2>Devant Room</h2>
<p>17:30 - My Favourite Books with JK Rowling</p>
<p>18:00 - Look! I did a sleight of hand! Just kidding with Lennart Green</p>
<p>19:30 - Old people grumbling about the number of steps to the Theatre</p>
</div>
</div>
</div>

If you want to scale everything you can use em or pt to set sizes for everything including image widths and padding. Then you can use vw or vmin on the font size to scale everything according to screen size.
padding:1em;
width:30em;
font-size:2vw;
Here is an example:
https://jsfiddle.net/5ezu2gLu/
Also, you can control the minimum and maximum sizes, on whatever you wish. More info here: http://madebymike.com.au/writing/precise-control-responsive-typography/

Try these changes:
Remove the center DIV from your HTML.
And change the following CSS:
#container {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
background: rgb(37, 66, 141);
background: -moz-radial-gradient(center, ellipse cover, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
background: -webkit-radial-gradient(center, ellipse cover, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
background: radial-gradient(ellipse at center, rgba(37, 66, 141, 1) 0%, rgba(0, 0, 0, 1) 54%);
filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#25428d', endColorstr='#000000', GradientType=1);
}
#wrapper {
padding: 20px;
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
position: relative;
height: 100%;
width: 100%;
text-align: center;
}
#logo img {
max-width: 100%;
}
Here's an updated EXAMPLE
This basically scales the elements as the viewport width is reduced, however, I would advise using #media() queries to be more precise when scaling fonts etc.