PreLoad Animation/style.css
body{
    margin:0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f1f1f1;

}
.loader{
    text-align: center;
    vertical-align: middle;
    position: relative;
    display: flex; 
    background: white;
    padding: 150px;
    box-shadow: 0px 40px 60px -20px rgba(0,0,0,0.2);

}
.loader span{
    display: block;
    width: 20px;
    height: 20px;
    background: #eee;
    border-radius: 50%;
    margin: 0 5px;
    box-shadow: 0 2px 2px rgba(0,0,0,0.2);

}
.loader span:nth-child(2){
    background: #ff0000;
}

.loader span:nth-child(3){
    background: #84cdfa;

}
loader span:nth-child(4){
    background: #5ad1cd;
}

.loader span:not(:last-child){
    animation: animate 1.5s linear infinite;
}
@keyframes animate {
    0%{
        transform: translateX(0);
    }
    100%{
        transform: translateX(30px);
    }

}
.loader span:last-child{
    animation: jump 1.5s ease-in-out infinite;
}
@keyframes jump {
    0%{
        transform: translate(0,0);
    
    }
    10%{
        transform: translate(10px, -10px);
    }
    20% {
        transform: translate(20px, 10px);
      }
      30% {
        transform: translate(30px, -50px);
      }
      70% {
        transform: translate(-150px, -50px);
      }
      80% {
        transform: translate(-140px, 10px);
      }
      90% {
        transform: translate(-130px, -10px);
      }
      100% {
        transform: translate(-120px, 0);
      }
}