CSS3 animation implements 5 preload animation effects
Achieve the animation effect as shown in the picture: 
Preload animation 1: Double rotating circle
A circle rotating in two different directions. We define a CSS code for the speed of the inner ring, that is, the speed of the inner ring is 2 times faster than that of the outer ring.
The implementation is shown in the figure: 
html code:
<body style="background: #ffb83c;"> <p id="preloader-1"> <span></span> <span></span> </p> </body>
css code:
#preloader-1{
position: relative;
}
#preloader-1 span{
position: absolute;
border:8px solid #fff;
border-top:8px solid transparent;
border-radius: 999px;
}
#preloader-1 span:nth-child(1){
width:80px;
height: 80px;
animation: spin-1 2s infinite linear;
}
#preloader-1 span:nth-child(2){
top:20px;
left:20px;
width:40px;
height: 40px;
animation: spin-2 1s infinite linear;
}
@keyframes spin-1{
0%{transform: rotate(360deg); opacity: 1.0;}
50%{transform: rotate(180deg); opacity: 0.5;}
100%{transform: rotate(0deg);opacity: 0;}
}
@keyframes spin-2{
0%{transform: rotate(0deg); opacity: 0.5;}
50%{transform: rotate(180deg); opacity: 1;}
100%{transform: rotate(360deg);opacity: 0.5;}
}Preload animation two: staggered circle
The two circles move back and forth horizontally. Each circle has its own reverse movement animation parameters set.
Effect:
html code:
<body style="background: #4ad3b4;"> <p id="preloader-2"> <span></span> <span></span> </p> </body>
css code:
#preloader-2{
position: relative;
}
#preloader-2 span{
position: absolute;
width:30px;
height: 30px;
background: #fff;
border-radius: 999px;
}
#preloader-2 span:nth-child(1){
animation: cross-1 1.5s infinite linear;
}
#preloader-2 span:nth-child(2){
animation: cross-2 1.5s infinite linear;
}
@keyframes cross-1{
0%{transform: translateX(0); opacity: 0.5;}
50%{transform: translateX(80px); opacity: 1;}
100%{transform: translateX(0);opacity: 0.5;}
}
@keyframes cross-2{
0%{transform: translateX(80px); opacity: 0.5;}
50%{transform: translateX(0); opacity: 1;}
100%{transform: translateX(80px);opacity: 0.5;}
}Preload animation three: rotating circle
Effect:
html code:
<body style="background: #ab69d9;"> <p id="preloader-3"> <span></span> </p> </body>
css code:
#preloader-3{
position: relative;
width:80px;
height: 80px;
border:4px solid rgba(255,255,255,.25);
border-radius: 999px;
}
#preloader-3 span{
position: absolute;
width:80px;
height:80px;
border:4px solid transparent;
border-top:4px solid #fff;
border-radius: 999px;
top:-4px;
left:-4px;
animation: rotate 1s infinite linear;
}
@keyframes rotate{
0%{transform: rotate(0deg);}
100%{transform: rotate(360deg);}
}Preload animation four: jumping circle
This is a Mexican wave pattern animation The effect is achieved by setting the delay parameters between different circles.
Effect:
html code:
<body style="background: #c1d64a;"> <p id="preloader-4"> <span></span> <span></span> <span></span> <span></span> <span></span> </p> </body>
css code:
#preloader-4{
position: relative;
}
#preloader-4 span{
position:absolute;
width:16px;
height: 16px;
border-radius: 999px;
background: #fff;
animation: bounce 1s infinite linear;
}
#preloader-4 span:nth-child(1){
left:0;
animation-delay: 0s;
}
#preloader-4 span:nth-child(2){
left:20px;
animation-delay: 0.25s;
}
#preloader-4 span:nth-child(3){
left:40px;
animation-delay: 0.5s;
}
#preloader-4 span:nth-child(4){
left:60px;
animation-delay: 0.75s;
}
#preloader-4 span:nth-child(5){
left:80px;
animation-delay: 1.0s;
}
@keyframes bounce{
0%{transform: translateY(0px);opacity: 0.5;}
50%{transform: translateY(-30px);opacity: 1.0;}
100%{transform: translateY(0px);opacity: 0.5;}
}Preload animation five: radar circle
A kind of radar For the radiation effect, set the same fade-in and fade-out effect for three span elements, and then delay each one slightly to achieve it.
Effect: 
html code:
<body style="background: #f9553f;"> <p id="preloader-5"> <span></span> <span></span> <span></span> </p> </body>
css code:
#preloader-5{
position: relative;
}
#preloader-5 span{
position:absolute;
width:50px;
height: 50px;
border:5px solid #fff;
border-radius: 999px;
opacity: 0;
animation: radar 2s infinite linear;
}
#preloader-5 span:nth-child(1){
animation-delay: 0s;
}
#preloader-5 span:nth-child(2){
animation-delay: 0.66s;
}
#preloader-5 span:nth-child(3){
animation-delay: 1.33s;
}
@keyframes radar{
0%{transform: scale(0);opacity: 0;}
25%{transform: scale(0);opacity: 0.5;}
50%{transform: scale(1);opacity: 1.0;}
75%{transform: scale(1.5);opacity: 0.5;}
100%{transform: scale(2);opacity: 0;}
}Related articles:
How to use HTML5 Canvas produces 3D animation effects
HTML5 Canvas animation effect graphic code demonstration
css3 animation effect summary analysis
The above is the detailed content of CSS3 animation implements 5 preload animation effects. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1381
52
Working With GraphQL Caching
Mar 19, 2025 am 09:36 AM
If you’ve recently started working with GraphQL, or reviewed its pros and cons, you’ve no doubt heard things like “GraphQL doesn’t support caching” or
Building an Ethereum app using Redwood.js and Fauna
Mar 28, 2025 am 09:18 AM
With the recent climb of Bitcoin’s price over 20k $USD, and to it recently breaking 30k, I thought it’s worth taking a deep dive back into creating Ethereum
Creating Your Own Bragdoc With Eleventy
Mar 18, 2025 am 11:23 AM
No matter what stage you’re at as a developer, the tasks we complete—whether big or small—make a huge impact in our personal and professional growth.
Vue 3
Apr 02, 2025 pm 06:32 PM
It's out! Congrats to the Vue team for getting it done, I know it was a massive effort and a long time coming. All new docs, as well.
Can you get valid CSS property values from the browser?
Apr 02, 2025 pm 06:17 PM
I had someone write in with this very legit question. Lea just blogged about how you can get valid CSS properties themselves from the browser. That's like this.
A bit on ci/cd
Apr 02, 2025 pm 06:21 PM
I'd say "website" fits better than "mobile app" but I like this framing from Max Lynch:
Comparing Browsers for Responsive Design
Apr 02, 2025 pm 06:25 PM
There are a number of these desktop apps where the goal is showing your site at different dimensions all at the same time. So you can, for example, be writing
Stacked Cards with Sticky Positioning and a Dash of Sass
Apr 03, 2025 am 10:30 AM
The other day, I spotted this particularly lovely bit from Corey Ginnivan’s website where a collection of cards stack on top of one another as you scroll.
