Develop Reference

Background reveal javascript not working properly

By following this tutorial :https://codepen.io/xaviDDB/pen/ExaKeeN I made a section in my website with this background reveal. here is the link:http://example.com/abra/
The code works fine if I do not have any other section in this page. But if I do, then it gets very strange. The reveal circle move away from the Mouse. See the page, I have added a horse image & the code gets messy. How do I solve this?
This is my current code:
(function() {
let magic = document.querySelector('.magic');
let magicWHalf = magic.offsetWidth / 2;
document.body.addEventListener('mousemove', function(e) {
magic.style.left = e.pageX - magicWHalf + 'px';
magic.style.top = e.pageY - magicWHalf + 'px';
});
document.body.addEventListener('mouseout', function(e) {
//magic.style.left = 'calc(50% - 10rem)';
//magic.style.top = 'calc(50% - 10rem)';
});
})();
.containers {
position: relative;
height: 100vh;
width: 100%;
background-color: #ffffff;
text-align: center;
overflow: hidden;
z-index: 1;
}
.containers:hover {
cursor: crosshair;
}
.text {
position: absolute;
font-size: 72px;
font-family: Arial, Helvetica, sans-serif;
color: #000000;
bottom: 20%;
left: 0;
right: 0;
z-index: 3;
}
.magic {
position: absolute;
top: calc(50% - 10rem);
left: calc(50% - 10rem);
width: 500px;
height: 500px;
background: center center no-repeat fixed;
background-size: cover;
border-radius: 50%;
z-index: 2;
}
<div class="containers">
<div class="text">Lorem Ipsum</div>
<div class="magic" style="background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/hover-reveal.jpg')"></div>
</div>

You have to update your mouse-move function in javascript. It has to calculate the relative mouse position to its parent (.container)
and one more improvement: set the eventListener on the element you want to hover. Not the entire body.
(function() {
const container = document.querySelector('.container');
const magic = document.querySelector('.magic');
const magicWHalf = magic.offsetWidth / 2;
container.addEventListener('mousemove',function(e){
const rect = container.getBoundingClientRect(),
scrollLeft = window.pageXOffset || document.documentElement.scrollLeft,
scrollTop = window.pageYOffset || document.documentElement.scrollTop;
magic.style.left = (e.pageX - (rect.left + scrollLeft)) - magicWHalf+'px';
magic.style.top = (e.pageY - (rect.top + scrollTop)) - magicWHalf+'px';
});
container.addEventListener('mouseout',function(e){
//magic.style.left = 'calc(50% - 10rem)';
//magic.style.top = 'calc(50% - 10rem)';
});
})();
.container {
position: relative;
height: 100vh;
width: 100%;
background-color: #ffffff;
text-align: center;
overflow: hidden;
z-index: 1;
}
.container:hover {
cursor: crosshair;
}
.text {
position: absolute;
font-size: 72px;
font-family: Arial, Helvetica, sans-serif;
color: #000000;
bottom: 20%;
left: 0;
right: 0;
z-index: 3;
}
.magic {
--size: 20rem;
position: absolute;
top: calc(50% - var(--size));
left: calc(50% - var(--size));
width: var(--size);
height: var(--size);
background: center no-repeat fixed;
background-size: cover;
border-radius: 50%;
z-index: 2;
}
<h1>add</h1>
<h1>extra</h1>
<h1>space</h1>
<h1>at top</h1>
<div class="container">
<div class="text">Lorem Ipsum</div>
<div class="magic" style="background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/hover-reveal.jpg')"></div>
</div>

You need to add the height of the previous element of your div.container
html
<div class="other">Other div </div>
<div class="container">
<div class="text">Lorem Ipsum</div>
<div class="magic" style="background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/142996/hover-reveal.jpg')"></div>
</div>
js
let magic = document.querySelector('.magic');
let magicWHalf = magic.offsetWidth / 2;
let heightPrevELm=document.querySelector('.other').offsetHeight;
document.body.addEventListener('mousemove',function(e){
magic.style.left = e.pageX - magicWHalf+'px';
magic.style.top = e.pageY - (magicWHalf+heightPrevELm)+'px';
});
You can see the result here :
https://codepen.io/bertyn99/pen/YzEwOpO
But i think if they are multiple element before we need to optimize the code

Website code works fine on Chrome and Firefox, desktop or mobile, but does not work on Safari

A certain piece of my website works fine on Chrome and Firefox, but does not seem to work on Safari. I checked and all the people trying the website on iPhones had Javascript enabled. Is there something about my code that cannot be read by Safari? Are there any tools out there to test how code would be perceived on Safari that I can use with a windows computer?
Below is the code to the piece of my website. I had to replace all images and text with different content because I am forbidden to share the actual content. Essentially, this piece of the website would allow someone to input a certain metric in, via a slider bar, and see what something would look like with said metric. The slider bar seems to be movable, but images are not appearing, nor are they moving when viewing through Safari. As an additional note, I converted this code to https (what Wix refers to as all in one text block) and inserted it into my Wix website as an html element.
I realize that my JavaScript has quite a few redundancies, such as defining the same variable locally twice instead of defining it globally once. I'm looking to fix those later and get this working first (although this could be why it doesn't work on Safari?). I've never developed anything before, so any help at all would be much appreciated.
Update: I had a few people send me screenshots and the slider bar AND javascript are working, the images are just not showing up on Safari.
HTML
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
<!-- Box-->
<div class="wholething">
<div class="box">
<!-- Dude -->
<img class="img-square img-dude" src="https://i.pinimg.com/474x/ff/5a/74/ff5a741afd59d527f4492c593b329106--free-clipart-downloads-free-clipart-images.jpg" id="dude" </img>
<!-- Banana-->
<img class="img-square img-bn" src=" https://upload.wikimedia.org/wikipedia/commons/0/0a/Candy-clipart.svg" id="flag">
</img>
<div class="whitebox" id="whiteboxID">
</div>
<img class="gorilla" src="https://openclipart.org/download/249534/1464300474.svg" id="gorillaID" </img>
</div>
<h1 class="sliderlabel" id="sliderlabelID">Hunger level</h1>
<h1 class="sliderlabelinfo" id="sliderlabelinfoID">(drag to select)</h1>
<!-- Slider -->
<div class="slidecontainer">
<input type="range" min="3" max="10" value="5" step="0.1" class="slider" id="inchslider">
<output name="rangeVal" id="value"></output>
</div>
</div>
</body>
</html>
CSS
html {
overflow-y: hidden;
}
.wholething {
height: 100%;
width: 100%;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
position: absolute;
}
.box {
background-color: #F5F4EF;
height: 60%;
width: 81.25%;
position: absolute;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
border-radius: 5%;
}
.img-dude {
position: absolute;
top: 0;
bottom: 0;
margin-top: auto;
margin-bottom: auto;
margin-left: 20px;
height: 90%;
}
.img-bn {
position: absolute;
top: 0;
bottom: 0;
margin-top: auto;
margin-bottom: auto;
z-index: 2;
height: 10.125%;
}
.whitebox {
position: absolute;
background-color: #F5F4EF;
top: 0;
bottom: 0;
height: calc(15% + 15px);
width: calc(15% + 20px);
margin-top: auto;
margin-bottom: auto;
z-index: 1;
}
.gorilla {
position: absolute;
top: 0;
bottom: 0;
right: 0%;
margin-top: auto;
margin-bottom: auto;
z-index: 2;
height: 90%;
display: none;
}
.sliderlabel {
position: absolute;
left: 12.5%;
top: 61%;
font-size: 16px;
font-family: Arial;
font-weight: 900;
}
.sliderlabelinfo {
position: absolute;
left: 12.5%;
top: 66.5%;
font-size: 14px;
font-family: Arial;
font-weight: 500;
}
.slidervalue {
position: absolute;
top: 20px;
left: 28.5%;
}
.slidecontainer {
width: 75%;
position: absolute;
left: 0;
right: 0;
top: 90%;
margin-left: auto;
margin-right: auto;
}
.slider {
-webkit-appearance: none;
-moz-apperance: none;
width: 100%;
height: 10px;
background-image: -webkit-gradient( linear, left top, right top, color-stop(0.15, #4BD1A0), color-stop(0.15, #F5F4EF));
position: absolute;
outline: none;
opacity: 0.7;
-webkit-transition: .2s;
transition: opacity .2s;
border-radius: 5px;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
}
.slider:hover {
opacity: 1;
box-shadow: 0 0 0 2px #4BD1A0;
}
.slider::-webkit-slider-thumb:hover+output {
display: block;
transform: translateX(-50%);
box-shadow: 0 0 0 2px #4BD1A0;
}
.slider:active {
opacity: 1;
box-shadow: 0 0 0 2px #4BD1A0;
}
.slider::-webkit-slider-thumb:active {
box-shadow: 0 0 0 2px #4BD1A0;
}
.slider::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 25px;
height: 25px;
background: #F5F4EF;
cursor: pointer;
border-radius: 50%;
}
.slider::-moz-range-thumb {
width: 25px;
height: 25px;
background: #4CAF50;
cursor: pointer;
}
output {
position: absolute;
top: -50px;
left: calc(28.57% + 3.25px);
width: 80px;
height: 30px;
border: 1px solid #e2e2e2;
background-color: #4BD1A0;
border-radius: 10px;
color: white;
font-size: 14px;
line-height: 30px;
text-align: center;
vertical-align: middle;
display: block;
transform: translateX(-50%);
}
input[type=range]:hover+output {
display: block;
transform: translateX(-50%);
}
input[type=range]:active+output {
display: block;
transform: translateX(-50%);
}
input[type=range] {
background-image: -webkit-gradient(linear, left top, right top, color-stop(0.2857, #4BD1A0), color-stop(0.2857, #F5F4EF))
}
output:after {
content: "";
position: absolute;
width: 0;
height: 0;
border-top: 10px solid #4BD1A0;
border-left: 10px solid transparent;
border-right: 10px solid transparent;
top: 100%;
left: 40%;
margin-top: -1px;
}
JavaScript
$(function() {
var element = document.getElementById('dude'),
style = window.getComputedStyle(element),
width = style.getPropertyValue('width'),
height = style.getPropertyValue('height');
var slicedwidth = width.slice(0, -2);
var slicedheight = height.slice(0, -2);
var widthmargarin = ((Number(slicedwidth) * 0.55) + 20).toString() + "px";
var heightmargarin = (Number(slicedheight) * 0.488).toString() + "px";
var whiteboxwidthmargarin = ((Number(slicedwidth) * 0.55) + 25).toString() + "px";
document.getElementById("flag").style.marginLeft = widthmargarin;
document.getElementById("flag").style.marginBottom = heightmargarin;
document.getElementById("value").innerHTML = "5 points";
document.getElementById("whiteboxID").style.marginLeft = whiteboxwidthmargarin;
});
function setIcon(x, y) {
var element = document.getElementById('dude'),
style = window.getComputedStyle(element),
width = style.getPropertyValue('width'),
left = style.getPropertyValue('left'),
height = style.getPropertyValue('height');
var slicedwidth = width.slice(0, -2);
var slicedheight = height.slice(0, -2);
var widthmargarin = ((Number(slicedwidth) * 0.55) + (((x - 5) / 100 * 4.6) * Number(slicedwidth)) + 20).toString() + "px";
var heightmargarin = ((Number(slicedheight) * 0.485) + (((y - 5) / 100 * 0.5) * Number(slicedheight))).toString() + "px";
document.getElementById("flag").style.marginLeft = widthmargarin;
document.getElementById("flag").style.marginBottom = heightmargarin;
document.getElementById("flag").style.transform = "rotate(" + (7 - (x * 1.3)) + "deg)";
document.getElementById("whiteboxID").style.marginLeft = (Number(widthmargarin.slice(0, -2)) + 5).toString() + "px";
document.getElementById("whiteboxID").style.transform = "rotate(" + (7 - (x * 1.5)) + "deg)";
}
var slider = document.getElementById("inchslider");
var output = document.getElementById("value");
output.innerHTML = slider.value;
slider.oninput = function() {
output.innerHTML = this.value;
var positionXslider = 0;
var positionYslider = 0;
if (this.value >= 5) {
positionXslider = output.innerHTML;
positionYslider = output.innerHTML;
document.getElementById("flag").src = "https://upload.wikimedia.org/wikipedia/commons/0/0a/Candy-clipart.svg";
} else if (this.value >= 4 && this.value < 5) {
positionXslider = 5;
positionYslider = 5;
document.getElementById("flag").src = "https://openclipart.org/download/284444/1502025489.svg";
} else if (this.value < 4) {
positionXslider = 5;
positionYslider = 5;
document.getElementById("flag").src = "https://image.shutterstock.com/image-vector/slice-pizza-on-white-background-260nw-597727904.jpg";
} else {
positionXslider = output.innerHTML;
positionYslider = output.innerHTML;
}
setIcon(positionXslider, positionYslider);
};
$('input[type="range"]').on('input', function() {
var val = ($(this).val() - $(this).attr('min')) / ($(this).attr('max') - $(this).attr('min'));
$(this).css('background-image',
'-webkit-gradient(linear, left top, right top, ' +
'color-stop(' + val + ', #4BD1A0), ' +
'color-stop(' + val + ', #F5F4EF)' +
')'
);
});
$('input[type="range"]').on('input', function() {
var control = $(this),
controlMin = control.attr('min'),
controlMax = control.attr('max'),
controlVal = control.val(),
controlThumbWidth = 25;
var range = controlMax - controlMin;
var position = ((controlVal - controlMin) / range) * 100;
var positionOffset = Math.round(controlThumbWidth * position / 100) - (controlThumbWidth / 2) + 2.25;
var output = control.next('output');
var controlValNumber = Number(controlVal)
var controlValLabel = 0;
if (controlValNumber >= 5) {
controlValLabel = controlVal.slice(0, 3);
} else if (controlValNumber >= 4 && controlValNumber < 5) {
controlValLabel = 4;
} else if (controlValNumber < 4) {
controlValLabel = 3;
}
if (controlValNumber >= 10) {
document.getElementById("gorillaID").style.display = "block";
} else {
document.getElementById("gorillaID").style.display = "none";
}
output
.css('left', 'calc(' + position + '% - ' + positionOffset + 'px)')
.text(controlValLabel + " points")
});

Parallax Issue in Javascript

I was creating a parallax effect in which the image and the text move in opposite direction to the movement of the mouse. That is happening inside an element called parallax-wrapper. But when I move out of the element I want the image and the text to return back to their original positions. I have tried to detect the mouse position outside the element but for some reason it not firing properly.
The codepen link is - https://codepen.io/rohitgd/pen/gRLNad?editors=1010
HTML
<div class="parallax-wrapper">
<div class="layer" data-mouse-parallax="0.1">
<img src="https://tympanus.net/Development/MorphingBackgroundShapes/img/1.jpg"/>
</div>
<div class="layer" data-mouse-parallax="0.3">REVERT</div>
</div>
CSS
body {
background-color:#fff;
padding: 100px;
display: flex;
justify-content: center;
align-items: center;
}
.parallax-wrapper {
width: 500px;
height: 300px;
background-color:#0c0c0c;
position: relative;
overflow: hidden;
.layer {
width: 80%;
height: 80%;
position: absolute;
left: 30px;
text-align: center;
line-height: 300px;
font-size: 38px;
color:#FFF;
transition: all 200ms ease-out;
}
}
img {
width: 200px;
height: 200px;
position: relative;
top: 50px;
right: 70px;
}
Javascript
$(".parallax-wrapper").mousemove(function(e) {
var x = e.pageX - $(this).offset().left - $(this).width() / 2;
var y = e.pageY - $(this).offset().top - $(this).height() / 2;
$("*[data-mouse-parallax]").each(function() {
var factor = parseFloat($(this).data("mouse-parallax"));
x = -x * factor;
y = -y * factor;
$(this).css({ transform: "translate3d( " + x + "px, " + y + "px, 0 )" });
});
});
$(document).mouseleave(function(e) {
var target = $(e.target);
if( !target.is("div.layer")) {
alert('out of the element');
e.stopPropagation();
}
});
What I want is when the mouse is outside the parallax-wrapper the Image and the text return back to their original positions.

You're not resetting the transformations when your mouse leaves. You need to add this where you have the alert...
$(".parallax-wrapper").mouseleave(function(e) {
$("*[data-mouse-parallax]").each(function() {
$(this).css({ transform: "translate3d( 0, 0, 0 )" });
});
});
Note that the mouseleave event is triggered when the mouse leaves .parallax-wrapper, not document as you previously had it.
Here's a modified codepen...
https://codepen.io/anon/pen/ZyBgYJ

I think a selector was wrong. Here's a correct version or see code below.
To show better when you are inside/outside I change the background color, that's better than an alert. When you leave the wrapper (the black background) it flips correctly now.
Where RED is set you can reset the transform to the origin.
// Trying to replicate the effect here - https://tympanus.net/Development/MorphingBackgroundShapes/
$(".parallax-wrapper").mousemove(function(e) {
var x = e.pageX - $(this).offset().left - $(this).width() / 2;
var y = e.pageY - $(this).offset().top - $(this).height() / 2;
$(".parallax-wrapper").css("background-color", "#00ff00"); // <-- EXIT
// reset transform here
$("*[data-mouse-parallax]").each(function() {
var factor = parseFloat($(this).data("mouse-parallax"));
x = -x * factor;
y = -y * factor;
$(this).css({ transform: "translate3d( " + x + "px, " + y + "px, 0 )" });
});
});
// this is the selector I changed from "document" to ".parallax-wrapper"
$(".parallax-wrapper").mouseleave(function(e) {
var target = $(e.target);
if( !target.is("div.layer")) {
$(".parallax-wrapper").css("background-color", "#ff0000"); // <-- ENTER
e.stopPropagation();
}
});
body {
background-color:#fff;
padding: 100px;
display: flex;
justify-content: center;
align-items: center;
}
.parallax-wrapper {
width: 500px;
height: 300px;
background-color:#0c0c0c;
position: relative;
overflow: hidden;
.layer {
width: 80%;
height: 80%;
position: absolute;
left: 30px;
text-align: center;
line-height: 300px;
font-size: 38px;
color:#FFF;
transition: all 200ms ease-out;
}
}
img {
width: 200px;
height: 200px;
position: relative;
top: 50px;
right: 70px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parallax-wrapper">
<div class="layer" data-mouse-parallax="0.1">
<img src="https://tympanus.net/Development/MorphingBackgroundShapes/img/1.jpg"/>
</div>
<div class="layer" data-mouse-parallax="0.3">REVERT</div>
</div>

Replace $(document).mouseleave with $(".parallax-wrapper").mouseleave.
$(".parallax-wrapper").mousemove(function(e) {
var x = e.pageX - $(this).offset().left - $(this).width() / 2;
var y = e.pageY - $(this).offset().top - $(this).height() / 2;
$("*[data-mouse-parallax]").each(function() {
var factor = parseFloat($(this).data("mouse-parallax"));
x = -x * factor;
y = -y * factor;
$(this).css({ transform: "translate3d( " + x + "px, " + y + "px, 0 )" });
});
});
$(".parallax-wrapper").mouseleave(function(e) {
alert('out of the element');
});
body {
background-color: #fff;
padding: 100px;
display: flex;
justify-content: center;
align-items: center;
}
.parallax-wrapper {
width: 500px;
height: 300px;
background-color: #0c0c0c;
position: relative;
overflow: hidden;
}
.parallax-wrapper .layer {
width: 80%;
height: 80%;
position: absolute;
left: 30px;
text-align: center;
line-height: 300px;
font-size: 38px;
color: #FFF;
transition: all 200ms ease-out;
}
img {
width: 200px;
height: 200px;
position: relative;
top: 50px;
right: 70px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="parallax-wrapper">
<div class="layer" data-mouse-parallax="0.1">
<img src="https://tympanus.net/Development/MorphingBackgroundShapes/img/1.jpg"/>
</div>
<div class="layer" data-mouse-parallax="0.3">REVERT</div>
</div>

How do I get my Javascript to show just one spotlight centred on the mouse?

At the top of my website you can see that I have an animation at the top, I'm having trouble getting it to show just one spotlight that is centred on the mouse along with having the text shadow effect being centred on the mouse also.
I have found that by zooming in on the browser the centring issue is fixed but if possible I would rather not set a fixed zoom level for visitors.
Below I have attached the CSS followed by the JavaScript that I have used:
The CSS:
#text-shadow-box {
position: relative;
width: 100%;
height: 350px;
background: #666;
overflow: hidden;
cursor: none;
border: 1px solid Black;
-webkit-tap-highlight-color: rgba(0,0,0,0);
-webkit-user-select: none;
}
#text-shadow-box div.wall {
position: absolute;
top: 175px;
left: 0;
width: 100%;
}
#tsb-text {
margin: 0;
color: #999;
font-family: Helvetica, Arial, sans-serif;
font-size: 80px;
line-height: 1em;
height: 1px;
font-weight: bold;
text-align: center;
}
div.wall div {
position: absolute;
background: #999;
overflow: hidden;
top: 150px;
left: 0;
height: 300px;
width: 100%;
}
#tsb-spot {
position: absolute;
overflow: hidden;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: url(/spotlight.png) top center;
}
The JavaScript:
<script type="text/javascript" language="javascript" charset="utf-8">
var text;
var spot;
///window.onload = init;
init();
function init() {
text = document.getElementById('tsb-text');
spot = document.getElementById('tsb-spot');
document.getElementById('text-shadow-box').onmousemove = onMouseMove;
document.getElementById('text-shadow-box').ontouchmove = function (e) {e.preventDefault(); e.stopPropagation(); onMouseMove({clientX: e.touches[0].clientX, clientY: e.touches[0].clientY});};
onMouseMove({clientX: 300, clientY: 200});
}
function onMouseMove(e) {
var xm = e.clientX - 300;
var ym = e.clientY - 175;
var d = Math.sqrt(xm*xm + ym*ym);
text.style.textShadow = -xm + 'px ' + -ym + 'px ' + (d / 5 + 10) + 'px black';
xm = e.clientX - 600;
ym = e.clientY - 450;
spot.style.backgroundPosition = xm + 'px ' + ym + 'px';
}
</script>

With your current implementation, you are using an image for the spotlight, found on this line:
background: url(http://www.zachstronaut.com/lab/text-shadow-box/spotlight.png) top center;
A much better implementation would be to add a <canvas> element instead where your title is currently on your website. You can use CanvasRenderingContext2D.createRadialGradient() to create a spotlight effect: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/createRadialGradient.
You can also see some similar implementations of what I am recommending here:
https://jsfiddle.net/4Ezkg/
http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/

Change a value over a set amount of time with jQuery?

I'm working on a project that calls for a circular progress bar. I found one that will do the trick here:
http://codepen.io/shankarcabus/pen/GzAfb
But what I need to do is animate it on page load so that it will go up in value each time:
<div class="progress-pie-chart" data-percent="43">
So on "page1.htm", I need the data-percent value to automatically increase incrementally from 0-20. On "page2.htm" from 20-33, etc. I'm pretty new to jQuery, so I honestly have no idea where to begin on that.
How do I create a function that will increase the data-percent value over say, 500 milliseconds?

Using a setInterval we can produce something like. We also use some math to calculate the steps based on the fps to create a smooth animation. Decimals can also be used for the percent
var start = 0;
var end = 30;
var time = 800; //in ms
var fps = 30;
var increment = ((end-start)/time)*fps;
$('.progress-pie-chart')[0].dataset.percent = start;
var timer = setInterval(function() {
$('.progress-pie-chart')[0].dataset.percent = parseFloat($('.progress-pie-chart')[0].dataset.percent) + increment;
if (parseFloat($('.progress-pie-chart')[0].dataset.percent) >= end) {
clearInterval(timer);
}
var $ppc = $('.progress-pie-chart'),
percent = parseFloat($ppc[0].dataset.percent),
deg = 360 * percent / 100;
if (percent > 50) {
$ppc.addClass('gt-50');
}
$('.ppc-progress-fill').css('transform', 'rotate(' + deg + 'deg)');
$('.ppc-percents span').html(parseInt(percent, 10) + '%');
}, fps);
.progress-pie-chart {
width: 200px;
height: 200px;
border-radius: 50%;
background-color: #E5E5E5;
position: relative;
}
.progress-pie-chart.gt-50 {
background-color: #81CE97;
}
.ppc-progress {
content: "";
position: absolute;
border-radius: 50%;
left: calc(50% - 100px);
top: calc(50% - 100px);
width: 200px;
height: 200px;
clip: rect(0, 200px, 200px, 100px);
}
.ppc-progress .ppc-progress-fill {
content: "";
position: absolute;
border-radius: 50%;
left: calc(50% - 100px);
top: calc(50% - 100px);
width: 200px;
height: 200px;
clip: rect(0, 100px, 200px, 0);
background: #81CE97;
transform: rotate(60deg);
}
.gt-50 .ppc-progress {
clip: rect(0, 100px, 200px, 0);
}
.gt-50 .ppc-progress .ppc-progress-fill {
clip: rect(0, 200px, 200px, 100px);
background: #E5E5E5;
}
.ppc-percents {
content: "";
position: absolute;
border-radius: 50%;
left: calc(50% - 173.91304px/2);
top: calc(50% - 173.91304px/2);
width: 173.91304px;
height: 173.91304px;
background: #fff;
text-align: center;
display: table;
}
.ppc-percents span {
display: block;
font-size: 2.6em;
font-weight: bold;
color: #81CE97;
}
.pcc-percents-wrapper {
display: table-cell;
vertical-align: middle;
}
body {
font-family: Arial;
background: #f7f7f7;
}
.progress-pie-chart {
margin: 50px auto 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="progress-pie-chart" data-percent="0">
<div class="ppc-progress">
<div class="ppc-progress-fill"></div>
</div>
<div class="ppc-percents">
<div class="pcc-percents-wrapper">
<span>%</span>
</div>
</div>
</div>