Customize css loader in angular - css

I have this loader working fine.
CSS:
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s 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 *ngIf="somevalue" class="loader"></div>
Now I need put some text in center
but my try not working. How Can I let my loader like in second image? I dont want install more external components, md-progress-loader, md-circle...etc.. TRY IT

A very simple solution is to just place the text into another div and position it accordingly - something like
<div class="container">
<div class="loader"></div>
<div class="description">Text</div>
</div>
and
.description
{
position: absolute;
top:0;
left:0;
line-height:150px;
width:152px;
text-align:center;
}
.container
{
position:relative;
}

This counters the rotation and provides a roughly sane box in which other elements can be placed.
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
animation: spin 2s linear infinite;
}
#keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
.loader div {
display: block;
animation: spin 2s linear infinite reverse;
position: relative;
height: 100%;
}
.loader div span {
display: inline-block;
text-align: center;
}
<div *ngIf="somevalue" class="loader"><div><span>testing lots of text in this text box</span></div></div>

Related

Flexbox: How to center vertically [duplicate]

This question already has answers here:
How to make a div 100% height of the browser window
(40 answers)
How can I vertically center a div element for all browsers using CSS?
(48 answers)
Closed 4 years ago.
I am using flexbox and already succeed to make it centered horizontally, at you can see by running the snippet below, but it is not centered vertically and I don't get why
Here is a JSFiddle if you prefer.
.main {
display: flex;
align-items: center;
justify-content: center;
}
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s linear infinite;
max-width: 50%;
}
/* 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="main">
<div class="loader"></div>
</div>
You need to give a height to main class. As for example: height: 100vh; See:
.main {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s linear infinite;
max-width: 50%;
}
/* 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="main">
<div class="loader"></div>
</div>
The .main element has the same height as the .loader element (i.e. the items are vertically centered, but there is no space to see it).
You need to set the height of .main to the height you want to center in.
.main {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 120px;
height: 120px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s linear infinite;
max-width: 50%;
}
/* 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="main">
<div class="loader"></div>
</div>

Delete empty space between <h2> and CSS animation

In the following snippet you can see a space between h2 and animation. I want it remove it in my case.How can I do this?
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 50px;
height: 50px;
-webkit-animation: spin 2s linear infinite;
/* Safari */
animation: spin 2s 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);
}
}
h2 {
text-align: center;
}
<h2>xyzxyzxyzxyz.
<div class="loader" style="float:right;"></div>
</h2>
JSFIDDLE: https://jsfiddle.net/wdzLv7tk/
Float:right cause the problem. There are so many ways to keep the element side by side. I applied one of them. Here I have display:table for my parent element and for each child it is display:table-cell which gives a solution to your problem.
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 50px;
height: 50px;
-webkit-animation: spin 2s linear infinite;
/* Safari */
animation: spin 2s linear infinite;
}
.parent {
display: table;
margin:auto;
}
.child {
display: table-cell;
}
h2 {}
/* Safari */
#-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
}
}
#keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
h2 {
text-align: center;
}
<div class="parent">
<h2 class="child">xyzxyzxyzxyz.</h2>
<div class="loader child" style=""></div>
</div>
Just use text-align: right instead of text-align: center
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 50px;
height: 50px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s 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); }
}
h2 {
text-align: right;
}
<h2>xyzxyzxyzxyz.<div class="loader" style="float:right;"></div></h2>

css3 animation not working well on Firefox

I am trying to upload the three blocks one by one and I want to make animation control the transform with the help of CSS3. Now what's happening is, it's working fine in google chrome (exactly the way I want) but it's not working fine in firefox. In firefox the three blocks are coming visible first and than the css3 animation starts working, which I don't want. I want the animation from the starting as its coming in google chrome.
body {
font-size: 14px;
line-height: 18px;
font-family: arial;
}
.wrapper {
width: 960px;
margin: 10px auto;
}
.one {
float: left;
width: 100px;
height: 100px;
margin: 20px 0;
border: 1px solid #afafaf;
background: #ddd;
animation: one 1s ease 1s;
-webkit-animation: one 1s ease 1s;
}
#keyframes one {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#-webkit-keyframes one {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
.two {
float: left;
width: 100px;
height: 100px;
margin: 20px 0;
border: 1px solid #afafaf;
background: #ddd;
animation: two 2s ease 2s;
-webkit-animation: two 2s ease 2s;
}
#keyframes two {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#-webkit-keyframes two {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
.three {
float: left;
width: 100px;
height: 100px;
margin: 20px 0;
border: 1px solid #afafaf;
background: #ddd;
animation: two 3s ease 3s;
-webkit-animation: two 3s ease 3s;
}
#keyframes three {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#-webkit-keyframes three {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
<section class="wrapper">
<div class="one"></div>
<div class="two"></div>
<div class="three"></div>
</section>
There are several things you should change.
The first is that you should use a common class for all three since they're styled similarly and all having the same effect. I used a class called fadein (and also renamed the animation to this, though they don't need to match).
The second is that you can reuse the same animation for each, just use different animation-delays so that they're spaced out differently.
The third is that you need to have the initial state of all of them be scale(0) so that they don't show in FF. You can then use animation-direction:forwards to make sure they show after the animation as well.
Lastly, if you're going to use -webkit-keyframes, you should use -webkit-transform inside of that as well so that you get more browser support.
body {
font-size: 14px;
line-height: 18px;
font-family: arial;
}
.wrapper {
width: 960px;
margin: 10px auto;
}
.fadein {
float: left;
width: 100px;
height: 100px;
margin: 20px 0;
border: 1px solid #afafaf;
background: #ddd;
transform:scale(0);
-webkit-transform:scale(0);
animation: fadein 1s ease 1s forwards;
-webkit-animation: fadein 1s ease 1s forwards;
}
#keyframes fadein {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#-webkit-keyframes fadein {
0% {
-webkit-transform: scale(0);
}
100% {
-webkit-transform: scale(1);
}
}
.two {
animation-delay: 2s;
-webkit-animation-delay: 2s;
}
.three {
animation-delay: 3s;
-webkit-animation-delay: 3s;
}
<section class="wrapper">
<div class="fadein one"></div>
<div class="fadein two"></div>
<div class="fadein three"></div>
</section>

CSS: Loading spinner squared circle look

I am trying to implement a spinner only using CSS that looks like on following image, see the picture. Only one piece of the spinner is filled with color at a time.
In the following fiddle, there is a similar spinner, but I need to rotate the whole spinner (22.5°) and also to modify its rays.
http://jsfiddle.net/ucsnaukf/
HTML:
<div class="spinner"><div>Loading…</div></div>
CSS:
#-webkit-keyframes spin {
to { transform: rotate(1turn); }
}
#-moz-keyframes spin {
to { transform: rotate(1turn); }
}
#-ms-keyframes spin {
to { transform: rotate(1turn); }
}
#keyframes spin {
to { transform: rotate(1turn); }
}
.spinner {
position: relative;
display: inline-block;
width: 5em;
height: 5em;
margin: 0 .5em;
font-size: 12px;
text-indent: 999em;
overflow: hidden;
-webkit-animation: spin 0.8s infinite steps(8);
-moz-animation: spin 0.8s infinite steps(8);
-ms-animation: spin 0.8s infinite steps(8);
-o-animation: spin 0.8s infinite steps(8);
animation: spin 0.8s infinite steps(8);
}
.spinner:before,
.spinner:after,
.spinner > div:before,
.spinner > div:after {
content: '';
position: absolute;
top: 0;
left: 2.25em; /* (container width - part width)/2 */
width: .5em;
height: 1.5em;
border-radius: .2em;
background: #eee;
box-shadow: 0 3.5em #eee; /* container height - part height */
transform-origin: 50% 2.5em; /* container height / 2 */
}
.spinner:before {
background: blue;
}
.spinner:after {
transform: rotate(-45deg);
}
.spinner > div:before {
transform: rotate(-90deg);
}
.spinner > div:after {
transform: rotate(-135deg);
}
Can anyone help?
Here's a start for you (http://jsfiddle.net/ucsnaukf/73/):
<--! HTML -->
<div class="wrapper">
<div class="spinner">
<div>Loading…
</div>
</div>
<div class="circ"></div>
</div>
/* CSS */
#-webkit-keyframes spin {
to { transform: rotate(1turn); }
}
#-moz-keyframes spin {
to { transform: rotate(1turn); }
}
#-ms-keyframes spin {
to { transform: rotate(1turn); }
}
#keyframes spin {
to { transform: rotate(1turn); }
}
.wrapper{
border:1px solid white;
border-radius:100%;
position:relative;
width: 5em;
height: 5em;
border-radius:999px;
overflow:hidden;
}
/* Circular mask */
.circ{
border:1px solid WHITE;
position:absolute;
top:10%;
left:10%;
right:0;
bottom:0;
width:55%;
height:55%;
background-color:#fff;
border-radius:999px;
}
.spinner {
border:1px solid white;
border-radius:100%;/* Round the border */
position: absolute;
display: inline-block;
width: 5em;
height: 5em;
font-size: 12px;
text-indent: 999em;
overflow: hidden;
-webkit-animation: spin 0.8s infinite steps(8);
-moz-animation: spin 0.8s infinite steps(8);
-ms-animation: spin 0.8s infinite steps(8);
-o-animation: spin 0.8s infinite steps(8);
animation: spin 0.8s infinite steps(8);
}
.spinner:before,
.spinner:after,
.spinner > div:before,
.spinner > div:after {
content: '';
position: absolute;
top: 0;
left: 1.8em; /* (container width - part width)/2 */
width: 1.4em; /* longer */
height: .8em; /* shorter */
background: #eee;
box-shadow: 0 4.2em #eee; /* container height - part height */
transform-origin: 50% 2.5em; /* container height / 2 */
}
.spinner:before {
background: purple;
}
.spinner:after {
transform: rotate(-45deg);
}
.spinner > div:before {
transform: rotate(-90deg);
}
.spinner > div:after {
transform: rotate(-135deg);
}
Looks a bit flower like, but continue playing with it and you'll get it the way you want.
You may want to consider used one of the many, great looking, free to use spinners available on the web... check out this massive collection for example: http://codepen.io/collection/HtAne/

Drawing animated arc with pure CSS

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);
}
}

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