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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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HTML 

              
                <div>
<div class="loading1"><i></i><i></i><i></i></div>
<div class="loading2"><i></i><i></i></div>
<div class="loading3"></div>
<div class="loading4"><i></i><i></i><i></i><i></i></div>
<div class="loading5"><i></i><i></i><i></i><i></i></div>
</div>
<div>
<div class="loading6"></div>
<div class="loading7"><i></i><i></i></div>
<div class="loading8"><i></i><i></i></div>
<div class="loading9"><i></i><i></i><i></i><i></i></div>
<div class="loading10">
  <div class="ani1"><i></i><i></i><i></i></div>
  <div class="ani2"><i></i><i></i><i></i></div>
  <div class="ani3"><i></i><i></i><i></i></div>
  <div class="ani4"><i></i><i></i><i></i></div>
</div>
</div>
!

CSS 

              
                body>div{
  display: flex;
  margin-bottom:20px;
}
div{
  margin:auto;
}
.loading1{
  width:100px;
  height:100px;
  background:#00b39f;
  border-radius:50%;
  animation:loading1-ani1 3s ease-in-out infinite;
  position: relative;
}
.loading1 i{
  content:'';
  width:100px;
  height:50px;
  background:#ffb364;
  border-radius:0 0 50px 50px;
  position:absolute;
  bottom: 0;
  transform-origin:left top;
}
.loading1 i:nth-child(3){
  animation:loading1-ani2 3s ease-in-out infinite;
}
.loading1 i:nth-child(2){
  background:#00b39f;
  animation:loading1-ani3 3s ease-in-out infinite;
}

@keyframes loading1-ani1{
  80%{
    transform:rotate(0deg);
  }
  25%{
    transform:rotate(-110deg);
  }
  30%,50%{
    transform:rotate(-90deg);
  }
  75%{
    transform:rotate(20deg);
  }
}

@keyframes loading1-ani2{
  30%{
    transform:rotateX(0deg);
    z-index: 1;
  }
  50%,100%{
    transform:rotateX(-180deg);
    z-index: 2;
  }
}
@keyframes loading1-ani3{
  80%{
    z-index: 1;
    transform:rotateX(0deg);
  }
  100%{
    z-index: 3;
    transform:rotateX(180deg);
  }
}
.loading2 i{
  width: 50px;
  height: 50px;
  display: inline-block;
  background: #ff5954;
  border-radius: 50%;
}
.loading2 i:nth-child(1){
  animation:loading2-ani1 1s ease-in-out infinite;

}
.loading2 i:nth-child(2){
  background: #00a8ce;
  margin-left: -10px;
  animation:loading2-ani1 1s ease-in-out 0.5s infinite;
}
@keyframes loading2-ani1{
  70%{
    transform:scale(0.5);
  }
}
.loading3{
  width: 30px;
  height: 35px;
  display: inline-block;
  background: #ff5954;
  border-radius: 50%;
  animation:loading3-ani1 1s ease-in-out 0.5s infinite;
}
@keyframes loading3-ani1{
  50%{
    height: 30px;
    transform:translate(0,70px);
  }
}
.loading4{
  width: 20px;
  height: 20px;
  transform-origin:center;
  animation:loading4-ani1 1s ease-in-out infinite;
}
.loading4 i,
.loading4 i:before,
.loading4 i:after{
  content: '';
  position:absolute;
  width: 20px;
  height: 20px;
  display: inline-block;;
  border-radius: 50%;
}
.loading4 i:before{
  transform:translate(0,-20px) scale(0.75);

}
.loading4 i:after{
  transform:translate(0,-35px) scale(0.5);
}
.loading4 i:nth-child(1){
  transform:translate(0,50px);
}
.loading4 i:nth-child(1),
.loading4 i:nth-child(1):before,
.loading4 i:nth-child(1):after{
  background: #ffb364;
}
.loading4 i:nth-child(2),
.loading4 i:nth-child(2):before,
.loading4 i:nth-child(2):after{
  background: #00a892;
}
.loading4 i:nth-child(2){
  transform:rotate(90deg) translate(0,50px);
}
.loading4 i:nth-child(3),
.loading4 i:nth-child(3):before,
.loading4 i:nth-child(3):after{
  background: #1f4c59;
}
.loading4 i:nth-child(3){
  transform:rotate(180deg) translate(0,50px);
}
.loading4 i:nth-child(4),
.loading4 i:nth-child(4):before,
.loading4 i:nth-child(4):after{
  background: #ff5954;
}
.loading4 i:nth-child(4){
  transform:rotate(270deg) translate(0,50px);
}
@keyframes loading4-ani1{
  80%,100%{
    transform:rotate(360deg);
  }
}
.loading5{
  width: 40px;
  height: 40px;
  transform:rotate(45deg);
  animation:loading5-ani1 3s ease-in-out infinite;
}
.loading5 i{
  width: 40px;
  height: 40px;
  display: inline-block;
  border-radius: 50%;
  position:absolute;

}
.loading5 i:nth-child(1){
  background: #ff5954;
  transform:translate(0,50px);
  animation:loading5-ani2 3s ease-in-out infinite;
}
.loading5 i:nth-child(2){
  background: #1f4c59;
  transform:rotate(90deg) translate(0,50px);
  animation:loading5-ani3 3s ease-in-out infinite;
}
.loading5 i:nth-child(3){
  background: #00b39f;
  transform:rotate(180deg) translate(0,50px);
  animation:loading5-ani4 3s ease-in-out infinite;
}
.loading5 i:nth-child(4){
  background: #ffb364;
  transform:rotate(270deg) translate(0,50px);
  animation:loading5-ani5 3s ease-in-out infinite;
}
@keyframes loading5-ani1{
  25%{
    transform:rotate(135deg);
  }
  50%{
    transform:rotate(225deg);
  }
  75%{
    transform:rotate(315deg);
  }
  100%{
    transform:rotate(405deg);
  }
}
@keyframes loading5-ani2{
  17.5%,25%,42.5%,50%,67.5%,75%,92.5%,100%{
    transform:translate(0,50px);
  }
  12.5%,37.5%,62.5%,87.5%{
    transform:translate(0,35px);
  }
}
@keyframes loading5-ani3{
  17.5%,25%,42.5%,50%,67.5%,75%,92.5%,100%{
    transform:rotate(90deg) translate(0,50px);
  }
  12.5%,37.5%,62.5%,87.5%{
    transform:rotate(90deg) translate(0,35px);
  }
}
@keyframes loading5-ani4{
  17.5%,25%,42.5%,50%,67.5%,75%,92.5%,100%{
    transform:rotate(180deg) translate(0,50px);
  }
  12.5%,37.5%,62.5%,87.5%{
    transform:rotate(180deg) translate(0,35px);
  }
}
@keyframes loading5-ani5{
  17.5%,25%,42.5%,50%,67.5%,75%,92.5%,100%{
    transform:rotate(270deg) translate(0,50px);
  }
  12.5%,37.5%,62.5%,87.5%{
    transform:rotate(270deg) translate(0,35px);
  }
}
.loading6{
  width: 100px;
  height: 100px;
  background: #ff5954;
  border-radius: 50%;
  display: flex;

}
.loading6:before{
  content:'';
  width: 0;
  height: 0;
  margin:auto;
  border: 20px solid #fff;
  border-radius: 50%;
  animation:loading6-ani1 1s infinite;
}
@keyframes loading6-ani1{
  70%{
    width: 100px;
    height: 100px;
  }
  100%{
    width: 100px;
    height: 100px;
    border-width: 0;
  }
}
.loading7{
  width: 30px;
  height: 30px;
}
.loading7 i{
  width: 30px;
  height: 30px;
  display: inline-block;
  background: #ff5954;
  border-radius: 50%;
  position: absolute;
}
.loading7 i:nth-child(1){
  transform:translate(-50px,0);
  animation:loading7-ani1 1s linear infinite;

}
.loading7 i:nth-child(2){
  background: #00a8ce;
  transform:translate(50px,0);
  animation:loading7-ani2 1s linear infinite;
}
@keyframes loading7-ani1{
  25%{
    z-index: 2;
  }
  50%{
    transform:translate(50px,0) scale(1);
  }
  75%{
    transform:translate(0,0) scale(0.75);
  }
  100%{
    transform:translate(-50px,0) scale(1);

  }
}
@keyframes loading7-ani2{
  25%{
    transform:translate(0,0) scale(0.75);
  }
  50%{
    transform:translate(-50px,0) scale(1);
  }
  75%{
    z-index: 2;
  }
  100%{
    transform:translate(50px,0) scale(1);
  }
}
.loading8{
  width: 45px;
  height: 45px;
  animation:loading8-ani1 2s ease-in-out infinite;
}
.loading8 i,
.loading8 i:before{
  content: '';
  width: 45px;
  height: 45px;
  position: absolute;
}
.loading8 i{
  border-radius: 50%; 
  overflow: hidden;
}
.loading8 i:nth-child(1){
  background: #ff5954;
  transform:translate(0,-25px);
}
.loading8 i:nth-child(1):before{
  background: #00a8ce;
  bottom: 0;
  animation:loading8-ani2 2s ease-in-out infinite;
}
.loading8 i:nth-child(2){
  background: #00a8ce;
  transform:translate(0,25px);
}
.loading8 i:nth-child(2):before{
  animation:loading8-ani2 2s ease-in-out infinite;
  background: #ff5954;
}
@keyframes loading8-ani1{
  40%,50%{
    transform:rotate(180deg);
  }
  90%,100%{
    transform:rotate(360deg);
  }
}
@keyframes loading8-ani2{
  40%,100%{
    height:100%;
  }
  50%,90%{
    height:0;
  }
}
.loading9 i{
  width: 20px;
  height: 20px;
  display: inline-block;
  border-radius: 50%;
  background: #00b3d5;
}
.loading9 i:first-child{
  animation:loading9-ani2 0.5s linear infinite;
  opacity: 0;
  transform:translate(-20px);
}
.loading9 i:nth-child(2),
.loading9 i:nth-child(3){
  animation:loading9-ani3 0.5s linear infinite;
}
.loading9 i:last-child{
  animation:loading9-ani1 0.5s linear infinite;
}
@keyframes loading9-ani1{
  100%{
    transform:translate(40px);
    opacity: 0;
  }
}
@keyframes loading9-ani2{
  100%{
    transform:translate(20px);
    opacity: 1;
  }
}
@keyframes loading9-ani3{
  100%{
    transform:translate(20px);
  }
}
.loading10{
  width: 100px;
  height: 100px;
  position: relative;
}
.loading10>div{
  height:100px;
  opacity:0;
  position:absolute;
}
.loading10 .ani1{
  animation:loading10_ani5 4s steps(1) infinite;
}
.loading10 .ani1 i{
  display:inline-block;
  width: 50px;
  height: 100px;
  background:#ffb364;   
  border-radius:100% 0 0 100%/50% 0 0 50%;
}
.loading10 .ani1 i:nth-child(2),
.loading10 .ani1 i:nth-child(3){
  border-radius:0 100% 100% 0/0 50% 50% 0;
  transform-origin:left center;
  animation:loading10_ani1 4s infinite;
}
.loading10 .ani1 i:nth-child(2){
  background:#00b39f;
}
.loading10 .ani1 i:nth-child(3){
  backface-visibility: hidden;
  position:absolute;
  right:0;
}
@keyframes loading10_ani1{
  25%,100%{
    transform:rotateY(180deg);
  }
}
.loading10 .ani2{
  font-size:0;
  width:50px;
  animation:loading10_ani5 4s steps(1) 1s infinite;
}
.loading10 .ani2 i{
  display:inline-block;
  width: 50px;
  height: 50px;
  background:#00b39f;   
  border-radius:0 0 0 100%;
}
.loading10 .ani2 i:nth-child(1),
.loading10 .ani2 i:nth-child(2){
  border-radius: 100% 0 0 0;
  transform-origin:left bottom;
  animation:loading10_ani2 4s infinite;
}
.loading10 .ani2 i:nth-child(1){
  background:#354D59;
}
.loading10 .ani2 i:nth-child(2){
  backface-visibility: hidden; 
  position:absolute;
  left:0;
}
@keyframes loading10_ani2{
  25%{
    transform:rotateX(0deg);
  }
  50%,100%{
    transform:rotateX(180deg);
  }
}

.loading10 .ani3{
  width:50px;
  font-size:0;
  top:50px;
  animation:loading10_ani5 4s steps(1) 2s infinite;
}
.loading10 .ani3 i{
  display:inline-block;
  width: 50px;
  height: 50px;
  background:#ff5954;   
  border-radius:0 0 0 100%;
}
.loading10 .ani3 i:nth-child(3){
  background:#354D59;
  backface-visibility: hidden; 
}
.loading10 .ani3 i:nth-child(2),
.loading10 .ani3 i:nth-child(3){
  position:absolute;
  left:0;
  transform-origin:right center;
  animation:loading10_ani3 4s infinite;
}
@keyframes loading10_ani3{
  50%{
    transform:rotateY(0deg);
  }
  75%,100%{
    transform:rotateY(180deg);
  }
}
.loading10 .ani4{
  width:100px;
  font-size:0;
  top:50px;
  animation:loading10_ani5 4s steps(1) 3s infinite;
}
.loading10 .ani4 i{
  display:inline-block;
  width: 100px;
  height: 50px;
  background:#ffb364;   
  border-radius:0 0 50px 50px;
}
.loading10 .ani4 i:nth-child(3){
  background:#ff5954;
  backface-visibility: hidden; 
}
.loading10 .ani4 i:nth-child(2),
.loading10 .ani4 i:nth-child(3){
  position:absolute;
  left:0;
  transform-origin:center top;
  animation:loading10_ani4 4s infinite;
}
@keyframes loading10_ani4{
  75%{
    transform:rotateX(0deg);
  }
  100%{
    transform:rotateX(180deg);
  }
}
@keyframes loading10_ani5{
  0%{
    opacity:1;
  }
  25%{
    opacity:0;
  }
}
!

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