I have a css file which makes circle border fill animation perfectly. Its in 100px width and height. But i need only in 50px width and height circle with the same animation. I tried many more times to minimize the size, but the circle not get correctly fix with animation. please help me to smaller this circle.
My need:
Width-50px
Height -50px
border size as per the image file attached -circle border fill sample image
My code
#loading
{
width: 100px;
height: 100px;
margin: 30px auto;
position: relative;
}
.outer-shadow, .inner-shadow
{
z-index: 4;
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.inner-shadow
{
top: 50%;
left: 50%;
width: 80px;
height: 80px;
margin-left: -40px;
margin-top: -40px;
border-radius: 100%;
background-color: #ffffff;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.hold
{
position: absolute;
width: 100%;
height: 100%;
clip: rect(0px, 100px, 100px, 50px);
border-radius: 100%;
background-color: #fff;
}
.fill, .dot span
{
background-color: #f50;
}
.fill
{
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
clip: rect(0px, 50px, 100px, 0px);
}
.left .fill
{
z-index: 1;
-webkit-animation: left 1s linear ;
-moz-animation: left 1s linear ;
animation: left 1s linear both;
}
#keyframes left
{
0%{-webkit-transform:rotate(0deg);}
100%{transform:rotate(180deg);}
}
#-webkit-keyframes left
{
0%{-webkit-transform:rotate(0deg);}
100%{-webkit-transform:rotate(180deg);}
}
.right
{
z-index: 3;
-webkit-transform: rotate(180deg);
-moz-transform: rotate(180deg);
transform: rotate(180deg);
}
.right .fill
{
z-index: 3;
-webkit-animation: right 1s linear ;
-moz-animation: right 1s linear ;
animation: right 1s linear both ;
-webkit-animation-delay: 1s;
-moz-animation-delay: 1s;
animation-delay: 1s;
}
#keyframes right
{
0%{-webkit-transform:rotate(0deg);}
100%{transform:rotate(180deg);}
}
#-webkit-keyframes right
{
0% {transform: rotate(0deg);}
100% {transform: rotate(180deg);}
}
My code in jsfiddle...!
You need to divide by 2 every values involved, even the clip(); ones (fiddle updated)
#loading {
width: 50px;
height: 50px;
margin: 30px auto;
position: relative;
}
.outer-shadow,
.inner-shadow {
z-index: 4;
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.inner-shadow {
top: 50%;
left: 50%;
width: 40px;
height: 40px;
margin-left: -20px;
margin-top: -20px;
border-radius: 100%;
background-color: #ffffff;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.hold {
position: absolute;
width: 100%;
height: 100%;
clip: rect(0px, 50px, 50px, 25px);
border-radius: 100%;
background-color: #fff;
}
.fill,
.dot span {
background-color: #f50;
}
.fill {
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
clip: rect(0px, 25px, 50px, 0px);
}
.left .fill {
z-index: 1;
-webkit-animation: left 1s linear;
-moz-animation: left 1s linear;
animation: left 1s linear both;
}
#keyframes left {
0% {
-webkit-transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
#-webkit-keyframes left {
0% {
-webkit-transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(180deg);
}
}
.right {
z-index: 3;
-webkit-transform: rotate(180deg);
-moz-transform: rotate(180deg);
transform: rotate(180deg);
}
.right .fill {
z-index: 3;
-webkit-animation: right 1s linear;
-moz-animation: right 1s linear;
animation: right 1s linear both;
-webkit-animation-delay: 1s;
-moz-animation-delay: 1s;
animation-delay: 1s;
}
#keyframes right {
0% {
-webkit-transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
#-webkit-keyframes right {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
.inner-shadow img {
margin-left: 8px;
margin-top: 7px;
}
<div id='loading'>
<div class='outer-shadow'>
</div>
<div class='inner-shadow'>
</div>
<div class='hold left'>
<div class='fill'></div>
</div>
<div class='hold right'>
<div class='fill'></div>
</div>
</div>
edit: in respond to comment #Filipe
How would the change from clip to clip-path be? I tried (also changing rect to inset), but the animation stops working.
Possible example with clip-path instead clip .
#loading {
width: 50px;
height: 50px;
margin: 30px auto;
position: relative;
}
.outer-shadow,
.inner-shadow {
z-index: 4;
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.inner-shadow {
top: 50%;
left: 50%;
width: 40px;
height: 40px;
margin-left: -20px;
margin-top: -20px;
border-radius: 100%;
background-color: #ffffff;
box-shadow: 1px 1px 1px 1px rgba(0, 0, 0, 0.5);
}
.hold {
position: absolute;
width: 100%;
height: 100%;
clip-path: polygon(50% 0, 0 0, 0 100%, 50% 100%);
border-radius: 100%;
background-color: #fff;
}
.fill,
.dot span {
background-color: #f50;
}
.fill {
position: absolute;
width: 100%;
height: 100%;
border-radius: 100%;
clip-path: polygon(50% 0, 100% 0, 100% 100%, 50% 100%);
}
.left .fill {
z-index: 1;
-webkit-animation: left 1s linear;
-moz-animation: left 1s linear;
animation: left 1s linear both;
}
#keyframes left {
0% {
-webkit-transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
#-webkit-keyframes left {
0% {
-webkit-transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(180deg);
}
}
.right {
z-index: 3;
-webkit-transform: rotate(180deg);
-moz-transform: rotate(180deg);
transform: rotate(180deg);
}
.right .fill {
z-index: 3;
-webkit-animation: right 1s linear;
-moz-animation: right 1s linear;
animation: right 1s linear both;
-webkit-animation-delay: 1s;
-moz-animation-delay: 1s;
animation-delay: 1s;
}
#keyframes right {
0% {
-webkit-transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
#-webkit-keyframes right {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(180deg);
}
}
.inner-shadow img {
margin-left: 8px;
margin-top: 7px;
}
<div id='loading'>
<div class='outer-shadow'>
</div>
<div class='inner-shadow'>
</div>
<div class='hold left'>
<div class='fill'></div>
</div>
<div class='hold right'>
<div class='fill'></div>
</div>
</div>
is this what you expect,hope this will help to you.try this.I only concerned about the circle size of 50 px with inside circle.if this is not the case tell me.
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>jquery</title>
<style type="text/css">
div.circleone{
width: 50px;
height: 50px;
border-radius: 25px;
box-shadow: 1px 2px 1px black;
}
div.circletwo
{
width: 25px;
height: 25px;
border-radius: 12.5px;
box-shadow: 1px -1px 1px black;
position: relative;
top: 25%;
left: 25%;
}
</style>
</head>
<body>
<div class="circleone">
<div class="circletwo"></div>
</div>
</body>
</html>
Related
I have the following CSS code for a spinner animation I got from:
https://loading.io/css/
CSS is:
.lds-ring {
display: inline-block;
position: relative;
width: 64px;
height: 64px;
}
.lds-ring div {
box-sizing: border-box;
display: block;
position: absolute;
width: 51px;
height: 51px;
margin: 6px;
border: 6px solid #000;
border-radius: 50%;
animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
border-color: #000 transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
animation-delay: -0.45s;
}
.lds-ring div:nth-child(2) {
animation-delay: -0.3s;
}
.lds-ring div:nth-child(3) {
animation-delay: -0.15s;
}
#keyframes lds-ring {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
<div class="lds-ring"><div></div><div></div><div></div><div></div></div>
I want to know in which way to change CSS in order to speed up the animation.
I tried fiddling around with animation-duration and animation-delay properties, but I can't seem to make it faster without messing up animation.
You simply need to change the animation-duration AND the animation-delay the same way. Here for example I divided everything by 2 which made the animation twice faster.
.lds-ring {
display: inline-block;
position: relative;
width: 64px;
height: 64px;
}
.lds-ring div {
box-sizing: border-box;
display: block;
position: absolute;
width: 51px;
height: 51px;
margin: 6px;
border: 6px solid #000;
border-radius: 50%;
animation: lds-ring /*1.2s*/0.6s cubic-bezier(0.5, 0, 0.5, 1) infinite;
border-color: #000 transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
animation-delay: calc(-0.45s / 2);
}
.lds-ring div:nth-child(2) {
animation-delay: calc(-0.3s / 2);
}
.lds-ring div:nth-child(3) {
animation-delay: calc(-0.15s / 2);
}
#keyframes lds-ring {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg)
}
}
<div class="lds-ring">
<div></div>
<div></div>
<div></div>
<div></div>
</div>
Here is a generic example using CSS variable where you can easily control the speed:
.lds-ring {
display: inline-block;
position: relative;
width: 64px;
height: 64px;
}
.lds-ring div {
box-sizing: border-box;
display: block;
position: absolute;
width: 51px;
height: 51px;
margin: 6px;
border: 6px solid #000;
border-radius: 50%;
animation: lds-ring calc(1.2s / var(--d,1)) cubic-bezier(0.5, 0, 0.5, 1) infinite;
border-color: #000 transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
animation-delay: calc(-0.45s / var(--d,1));
}
.lds-ring div:nth-child(2) {
animation-delay: calc(-0.3s / var(--d,1));
}
.lds-ring div:nth-child(3) {
animation-delay: calc(-0.15s / var(--d,1));
}
#keyframes lds-ring {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg)
}
}
<div class="lds-ring">
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<div class="lds-ring" style="--d:1.2">
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<div class="lds-ring" style="--d:2">
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<div class="lds-ring" style="--d:3">
<div></div>
<div></div>
<div></div>
<div></div>
</div>
ORIGINAL
.lds-ring {
display: inline-block;
position: relative;
width: 64px;
height: 64px;
}
.lds-ring div {
box-sizing: border-box;
display: block;
position: absolute;
width: 51px;
height: 51px;
margin: 6px;
border: 6px solid #58c;
border-radius: 50%;
animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
border-color: #58c transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
animation-delay: -0.45s;
}
.lds-ring div:nth-child(2) {
animation-delay: -0.3s;
}
.lds-ring div:nth-child(3) {
animation-delay: -0.15s;
}
#keyframes lds-ring {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
<div class="lds-ring"><div></div><div></div><div></div><div></div></div>
FASTER
Adjusting the animation speed and the animation delay is correct. You simply have to adjust it accordingly.
.lds-ring {
display: inline-block;
position: relative;
width: 64px;
height: 64px;
}
.lds-ring div {
box-sizing: border-box;
display: block;
position: absolute;
width: 51px;
height: 51px;
margin: 6px;
border: 6px solid #b00;
border-radius: 50%;
animation: lds-ring 0.8s cubic-bezier(0.5, 0, 0.5, 1) infinite;
border-color: #b00 transparent transparent transparent;
}
.lds-ring div:nth-child(1) {
animation-delay: -0s;
}
.lds-ring div:nth-child(2) {
animation-delay: -0.08s;
}
.lds-ring div:nth-child(3) {
animation-delay: -0.1s;
}
#keyframes lds-ring {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
<div class="lds-ring"><div></div><div></div><div></div><div></div></div>
Make a change on animation property and try.
animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
You are using the shorthand animation here.
animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
which basically resolves into:
animation-name: lds-ring;
animation-duration: 1.2s;
animation-timing-function: cubic-bezier(0.5, 0, 0.5, 1);
animation-iteration-count: infinite;
In order to make it faster you have to lower the animation duration.
For further explanation read this animation property
Still if you have problem with spinner which you used, then try this...
#loader {
position: absolute;
left: 50%;
top: 50%;
z-index: 999999;
width: 150px;
height: 150px;
margin: -75px 0 0 -75px;
border: 12px solid #f3f3f3;
border-radius: 50%;
border-top: 12px solid #004C91;
width: 75px;
height: 75px;
-webkit-animation: spin .9s linear infinite;
animation: spin 1s linear infinite;
}
#-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
<div id="loader"></div>
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid black;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin .7s linear infinite;
}
/* Safari */
#-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
<div class="loader"></div>
My preloader image does not center inside the circle and on small screen the perloader is not center at all. I have tried re-calculating auto margins nothing seems to work. how can I get the image to stay inside without spinning with the circle and center the preloader all together.
#load_cover {
width: 100%;
height: 100%;
position: fixed;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
text-align: center;
background-color: rgba(0, 0, 0);
z-index: 10000;
}
.loaderInner {
position: absolute;
top: 50%;
left: 50%;
margin: -50px 0px 0px -50px;
}
.logo {
position: absolute;
background-image: url("https://placeholdit.imgix.net/~text?txtsize=5&txt=40%C3%9745&w=40&h=45");
background-repeat: no-repeat;
width: 60px;
height: 60px;
top: 50%;
left: 50%;
margin: -50px 0px 0px -50px;
}
.loader {
border: 4px solid #838383;
border-radius: 50%;
border-top: 4px solid #dddddd;
width: 60px;
height: 60px;
-webkit-animation: spin 0.6s linear infinite;
animation: spin 0.6s linear infinite;
box-shadow: 0 0 1px #999;
filter: blur(0.7px);
}
#-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
#keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
<div id="load_cover">
<div class="loaderInner">
<div class="loader"></div>
<div class="logo"></div>
</div>
</div>
You can do something like this.
I took the .logo out and placed the image as the background of .loaderInner and then you position the image center.
#load_cover {
width: 100%;
height: 100%;
position: fixed;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
text-align: center;
background-color: rgba(0, 0, 0);
z-index: 10000;
}
.loaderInner {
background-image: url("https://placeholdit.imgix.net/~text?txtsize=5&txt=40%C3%9745&w=40&h=45");
background-position: center;
background-repeat: no-repeat;
position: absolute;
top: 50%;
left: 50%;
/*margin: -50px 0px 0px -50px;*/
transform: translate(-50%, -50%);
}
.loader {
border: 4px solid #838383;
border-radius: 50%;
border-top: 4px solid #dddddd;
width: 60px;
height: 60px;
-webkit-animation: spin 0.6s linear infinite;
animation: spin 0.6s linear infinite;
box-shadow: 0 0 1px #999;
filter: blur(0.7px);
}
#-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
transform: rotate(360deg);
}
}
#keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
<div id="load_cover">
<div class="loaderInner">
<div class="loader"></div>
<div class="logo"></div>
</div>
</div>
I have this pen which tries to emulate an object revolving around something. This works, but it isn't smooth. While revolving it pauses around the left and right edges.
I thought it had something to do with animation-timing-function but can't get the desired result with any of the in-built functions like ease-in-out or linear or a custom cubic-bezier function.
How can I make the animation feel smooth? If there are better ways something like this can be done, feel free to let me know.
.overlay {
background-image: -webkit-repeating-linear-gradient(0deg, transparent, transparent 1%, rgb(255, 255, 255) 2%, rgb(255, 255, 255) 2%);
background-image: repeating-linear-gradient(90deg, transparent, transparent 1%, rgb(255, 255, 255) 2%, rgb(255, 255, 255) 2%);
height: 200px;
position: relative;
width: 40%;
margin: auto;
}
.circle {
width: 100px;
height: 100px;
border-radius: 50%;
background: #888;
position: absolute;
z-index: -1;
left: 0;
display: inline-block;
}
.move {
-webkit-animation: moveAndGlow 2s infinite ease-in-out;
animation: moveAndGlow 2s infinite ease-in-out;
}
#-webkit-keyframes moveAndGlow {
25% {
background: #ccc;
-webkit-transform: scale(.5);
transform: scale(.5);
margin-top: 25px;
}
50% {
left: 100%;
margin-left: -100px;
background: #888;
-webkit-transform: scale(1);
transform: scale(1);
margin-top: 0;
}
75% {
background: #000;
-webkit-transform: scale(1.5);
transform: scale(1.5);
margin-top: 25px;
}
}
#keyframes moveAndGlow {
25% {
background: #ccc;
-webkit-transform: scale(.5);
transform: scale(.5);
margin-top: 25px;
}
50% {
left: 100%;
margin-left: -100px;
background: #888;
-webkit-transform: scale(1);
transform: scale(1);
margin-top: 0;
}
75% {
background: #000;
-webkit-transform: scale(1.5);
transform: scale(1.5);
margin-top: 25px;
}
}
<div class="overlay">
<span class="circle move"></span>
</div>
If you want to move you element in a 3d environement, you can use the perspective property and actual 3d rotation.
Right now you are animating on straight lines between positions so simulating a rotation is almost imposible. I built the following example, you will need to tweak the size to fit it into your project but you should get the idea.
Also note that I put the gradient background in a pseudo element so it appear in front of the moving object :
.overlay {
height: 200px;
position: relative;
width: 40%;
margin: auto;
perspective:500px;
margin-top:50px;
}
.overlay:after{
content:'';
position:absolute;
top:-100px; left:-10%;
width:120%; height:100%;
background-image: repeating-linear-gradient(90deg, transparent, transparent 1%, rgb(255, 255, 255) 2%, rgb(255, 255, 255) 2%);
}
.circle {
width: 100px;
height: 100px;
border-radius: 50%;
background: #888;
position: absolute;
z-index: -1;
left: 50%;
margin-left:-50px;
transform: rotateY(0deg) translateX(-100px) rotateY(0deg);
display: inline-block;
}
.move {
animation: moveAndGlow 2s infinite linear;
}
#keyframes moveAndGlow {
to{ transform:rotateY(360deg) translateX(-100px) rotateY(-360deg); }
}
<div class="overlay">
<span class="circle move"></span>
</div>
I found this made it smoother
.move {
-webkit-animation: moveAndGlow 2s infinite linear;
animation: moveAndGlow 2s infinite linear;
}
#-webkit-keyframes moveAndGlow {
25% {
background: #ccc;
-webkit-transform: scale(.5);
transform: scale(.5);
margin-top: 25px;
-webkit-animation-timing-function:ease-in;
}
50% {
left: 100%;
margin-left: -100px;
background: #888;
-webkit-transform: scale(1);
transform: scale(1);
margin-top: 0;
-webkit-animation-timing-function:ease-out;
}
75% {
background: #000;
-webkit-transform: scale(1.5);
transform: scale(1.5);
margin-top: 25px;
-webkit-animation-timing-function:ease-in;
}
}
How do I make the below animation fully work in safari browser ? It is working fine in Chrome.
Open the below link in chrome to see its full functionality (bounce and pulse effect), and in Safari to see the issue. Pulse effect around the pin doesn't work in safari!!
How can I fix this ?
Here is the JS FIDDLE link
html code:
<div class='pin bounce'></div>
<div class='pulse'></div>
CSS code:
body {
background: #e6e6e6;
}
.pin {
width: 30px;
height: 30px;
border-radius: 50% 50% 50% 0;
background: #00cae9;
position: absolute;
-webkit-transform: rotate(-45deg);
left: 50%;
top: 50%;
margin: -20px 0 0 -20px;
}
.pin:after {
content: "";
width: 14px;
height: 14px;
margin: 8px 0 0 8px;
background: #e6e6e6;
position: absolute;
border-radius: 50%;
}
.bounce {
-webkit-animation-name: bounce;
-webkit-animation-fill-mode: both;
-webkit-animation-duration: 1s;
}
.pulse {
background: #d6d4d4;
border-radius: 50%;
height: 14px;
width: 14px;
position: absolute;
left: 50%;
top: 50%;
margin: 11px 0px 0px -12px;
-webkit-transform: rotateX(55deg);
z-index: -2;
}
.pulse:after {
content: "";
border-radius: 50%;
height: 40px;
width: 40px;
position: absolute;
margin: -13px 0 0 -13px;
-webkit-animation: pulsate 1s ease-out;
-webkit-animation-iteration-count: infinite;
opacity: 0;
box-shadow: 0 0 1px 2px #00cae9;
-webkit-animation-delay: 1.1s;
}
#-webkit-keyframes pulsate {
0% {
-webkit-transform: scale(0.1, 0.1);
opacity: 0;
}
50% {
opacity: 1;
}
100% {
-webkit-transform: scale(1.2, 1.2);
opacity: 0;
}
}
#-webkit-keyframes bounce {
0% {
opacity: 0;
-webkit-transform: translateY(-2000px) rotate(-45deg);
}
60% {
opacity: 1;
-webkit-transform: translateY(30px) rotate(-45deg);
}
80% {
-webkit-transform: translateY(-10px) rotate(-45deg);
}
100% {
-webkit-transform: translateY(0) rotate(-45deg);
}
}
I know it is possible to draw and animate arcs in SVG and canvas. However, is it possible in CSS?
I have created an arc using the following method:
.arc{
width:150px;
height:400px;
border-radius:50%;
border-right:1px solid black;
border-left:1px solid black;
border-top:1px solid black;
border-bottom:1px solid white;
}
But, how can I animate this? The only way I can think of is having a pure white div over it and sliding that div to the right gradually revealing the arc. Is there a better way?
Here is working demo with minimum of hard-coded variables. This works based on animated circle halves:
.circle {
display: inline-flex;
overflow: hidden;
}
.circle__half {
height: 200px;
width: 100px;
position: relative;
overflow: hidden;
}
.circle__half:before {
height: inherit;
width: inherit;
position: absolute;
content: "";
border-radius: 100px 0 0 100px;
background-color: lime;
transform-origin: 100% 50%;
/* hidden by default */
transform: rotate(180deg);
opacity: 0.65;
animation-name: rotate-circle-half;
animation-duration: 4s;
animation-timing-function: linear;
animation-iteration-count: infinite;
}
.circle__half--right {
transform: scale(-1, -1);
}
.circle .circle__half--right:before {
animation-name: rotate-circle-half--right;
}
/* show half of circle half of the time */
#keyframes rotate-circle-half {
0% {
transform: rotate(180deg);
}
50% {
transform: rotate(0deg);
}
100% {
transform: rotate(0deg);
}
}
#keyframes rotate-circle-half--right {
0% {
transform: rotate(180deg);
}
50% {
transform: rotate(180deg);
}
100% {
transform: rotate(0deg);
}
}
<div class="circle">
<div class="circle__half"></div>
<div class="circle__half circle__half--right"></div>
</div>
Also the same look as iConnor's answer but doesn't have drawback of hardcoded background-color:
*,
*:before,
*:after {
box-sizing: border-box;
}
.circle {
display: inline-flex;
overflow: hidden;
}
.circle__half {
height: 200px;
width: 100px;
position: relative;
overflow: hidden;
}
.circle__half:before {
height: inherit;
width: inherit;
position: absolute;
content: "";
border-radius: 100px 0 0 100px;
border: 10px solid #00507c;
border-right-color: transparent;
background-color: #0087cf;
transform-origin: 100% 50%;
/* hidden by default */
transform: rotate(180deg);
opacity: 0.65;
animation-name: rotate-circle-half;
animation-duration: 4s;
animation-timing-function: linear;
animation-iteration-count: infinite;
}
.circle__half--right {
transform: scale(-1, -1);
}
.circle .circle__half--right:before {
animation-name: rotate-circle-half--right;
}
/* show half of circle half of the time */
#keyframes rotate-circle-half {
0% {
transform: rotate(180deg);
}
50% {
transform: rotate(0deg);
}
100% {
transform: rotate(0deg);
}
}
#keyframes rotate-circle-half--right {
0% {
transform: rotate(180deg);
}
50% {
transform: rotate(180deg);
}
100% {
transform: rotate(0deg);
}
}
<div class="circle">
<div class="circle__half"></div>
<div class="circle__half circle__half--right"></div>
</div>
If you need sole CSS3, then you can set a width+height, set border-radius to 100%, disable the extra borders (use only 1 or 2) and add some good pixels to it.
Then you can animate using animate: time animation ease timingFunction;
Declare the animation itself using #-prefix-keyframes { . . . } (Eh yea, looks like most browser engines require prefix for this one, chrome does :S)
I think I might have something close to what you mean:
.qLoader2 {
border: 4px solid blue;
width: 10vw;
height: 10vw;
width: 72px;
height: 72px;
position: absolute;
top: 12vh;
right: 45vw;
left: 45vw;
background: white;
opacity: 0.45;
border-right: none;
border-top: none;
border-left: none;
z-index: 2000;
background-color: transparent;
border-radius: 100%;
transform: rotateZ(0);
-webkit-animation: spin 2s linear infinite;
animation: spin 2s linear infinite;
}
/* #-moz-keyframes spin { . . . } */
/* #-ms-keyframes spin { . . . } */
/* #-o-keyframes spin { . . . } */
#-webkit-keyframes spin {
from {
transform: rotateZ(0deg) scale(1);
}
50% {
transform: rotateZ(540deg) scale(0.9);
border-color: #0099ff;
}
to {
transform: rotateZ(1080deg) scale(1);
}
}
#keyframes spin {
from {
transform: rotateZ(0deg) scale(1);
}
50% {
transform: rotateZ(540deg) scale(0.9);
border-color: #0099ff;
}
to {
transform: rotateZ(1080deg) scale(1);
}
}
<div class="qLoader2"></div>
On JSFiddle
Feel free to use and modify.
Alternatively you could check something with SVG it's fairly decent as well and supported by most nowadays browsers.
EDIT: Using two arcs, you can have the animation draw cleanly from left-to-right AND have the background show through:
http://jsfiddle.net/sPv4A/6/
Vendor prefixes not included for CSS:
.arcContain {
width: 150px;
height: 400px;
position: relative;
margin: 20px;
}
.arc {
width: 150px;
height: 400px;
border-radius: 50%;
border: 2px solid black;
border-bottom: 2px solid transparent;
position: absolute;
top: 0;
right: 0;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
.archideLeft .arc {
top: auto;
bottom: 0;
right: auto;
left: 0;
}
.archide {
width: 50%;
height: 0%;
position: absolute;
top: 0;
right: 0;
overflow: hidden;
animation: appear 1.2s ease-in 1.2s forwards;
}
.archideLeft {
top: auto;
bottom: 0;
right: auto;
left: 0;
animation: appear 1.2s ease-out forwards;
}
#keyframes appear {
to {
height: 100%;
}
}
<div class="arcContain">
<div class="archide archideLeft">
<div class="arc"></div>
</div>
<div class="archide">
<div class="arc"></div>
</div>
</div>
OLD ANSWER: Maybe using two child divs to cover it up, and then have them shrink away to reveal it:
.arc {
width: 150px;
height: 400px;
border-radius: 50%;
border-right: 1px solid black;
border-left: 1px solid black;
border-top: 1px solid black;
border-bottom: 1px solid white;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
position: relative;
}
.arcInner {
background: white;
height: 402px;
width: 77px;
position: absolute;
}
.arcLeft {
top: -2px;
left: -2px;
-webkit-transition: height 2s linear;
-moz-transition: height 2s linear;
-ms-transition: height 2s linear;
-o-transition: height 2s linear;
transition: height 2s linear;
}
.arcRight {
bottom: 0;
right: -2px;
-webkit-transition: height 2s 2s linear;
-moz-transition: height 2s 2s linear;
-ms-transition: height 2s 2s linear;
-o-transition: height 2s 2s linear;
transition: height 2s 2s linear;
}
.appear .arcInner {
height: 0;
}
<div class="arc">
<div class="arcInner arcLeft"></div>
<div class="arcInner arcRight"></div>
</div>
As Per Chris B's suggestion on the original question, the answer is to contain the arc in another div and then animate the width of the container:
http://jsfiddle.net/AZb3X/
CSS:
body{
background:orange;
}
.arc{
width:150px;
height:400px;
border-radius:50%;
border-right:1px solid black;
border-left:1px solid black;
border-top:1px solid black;
border-bottom:1px solid white;
float:left;
}
.hider{
width:0px;
overflow:hidden;
-webkit-animation:unhide 12s;
}
#-webkit-keyframes unhide{
100%{width:400px}
}
HTML:
<div class='hider'>
<div class="arc"></div>
</div>
I may be a little late, but I think using two "hiders" and translating one up and one down will look a little better.
Working Example
<div class="wrap">
<div class="arc"></div>
</div>
body {
background:orange;
}
.wrap {
position:absolute;
height:400px;
width:170px;
overflow: hidden;
}
.arc {
position:absolute;
width:150px;
height:400px;
margin:10px;
border-radius:50%;
border-right:1px solid black;
border-left:1px solid black;
border-top:1px solid black;
border-bottom:1px solid transparent;
}
.arc:before {
content:"";
position:absolute;
left:-1px;
top:-2px;
background: orange;
width:76px;
height:375px;
animation:unhide1 5s linear both;
}
.arc:after {
content:"";
position:absolute;
left:75px;
top:-2px;
background: orange;
float: right;
width:76px;
height:375px;
animation: unhide2 5s linear 5s both;
}
#keyframes unhide1 {
100% {
transform: translatey(-375px);
}
}
#keyframes unhide2 {
100% {
transform: translatey(375px);
}
}