Loader Animation in CSS

The loading animation can make a difference in enhancing your user experience if you have content that takes too long to load.

In this tutorial we will learn how to create loader animation in CSS

HTML

<div class="loader"></div>

CSS

  
.loader {
  
 position: relative;
  
 width: 2.5em;
  
 height: 2.5em;
  
 transform: rotate(165deg);
  
}
  


  
.loader:before, .loader:after {
  
 content: "";
  
 position: absolute;
  
 top: 50%;
  
 left: 50%;
  
 display: block;
  
 width: 0.5em;
  
 height: 0.5em;
  
 border-radius: 0.25em;
  
 transform: translate(-50%, -50%);
  
}
  


  
.loader:before {
  
 animation: before8 2s infinite;
  
}
  


  
.loader:after {
  
 animation: after6 2s infinite;
  
}
  


  
@keyframes before8 {
  
 0% {
  
  width: 0.5em;
  

      box-shadow: 1em -0.5em rgba(225, 20, 98, 0.75), -1em 0.5em rgba(111,
    202, 220, 0.75);
  
  
 }
  


  
 35% {
  
  width: 2.5em;
  

      box-shadow: 0 -0.5em rgba(225, 20, 98, 0.75), 0 0.5em rgba(111, 202,
    220, 0.75);
  
  
 }
  


  
 70% {
  
  width: 0.5em;
  

      box-shadow: -1em -0.5em rgba(225, 20, 98, 0.75), 1em 0.5em rgba(111,
    202, 220, 0.75);
  
  
 }
  


  
 100% {
  

      box-shadow: 1em -0.5em rgba(225, 20, 98, 0.75), -1em 0.5em rgba(111,
    202, 220, 0.75);
  
  
 }
  
}
  


  
@keyframes after6 {
  
 0% {
  
  height: 0.5em;
  

      box-shadow: 0.5em 1em rgba(61, 184, 143, 0.75), -0.5em -1em rgba(233,
    169, 32, 0.75);
  
  
 }
  


  
 35% {
  
  height: 2.5em;
  

      box-shadow: 0.5em 0 rgba(61, 184, 143, 0.75), -0.5em 0 rgba(233, 169,
    32, 0.75);
  
  
 }
  


  
 70% {
  
  height: 0.5em;
  

      box-shadow: 0.5em -1em rgba(61, 184, 143, 0.75), -0.5em 1em rgba(233,
    169, 32, 0.75);
  
  
 }
  


  
 100% {
  

      box-shadow: 0.5em 1em rgba(61, 184, 143, 0.75), -0.5em -1em rgba(233,
    169, 32, 0.75);
  
  
 }
  
}
  


  
.loader {
  
 position: absolute;
  
 top: calc(50% - 1.25em);
  
 left: calc(50% - 1.25em);
  
}

This is a CSS loader made in an elegant, but simple way: no need for JavaScript at all. You can simply just copy and paste it anywhere you'd like to show that activity is loading.

Thanks for Reading