body{
        background:#ccc;
        margin: 0;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .box{
        height: 50px;
        width: 50px;
        position: relative;
    }
    .box::before{
        content: '';
        height: 8px; width: 50px; background: #000; opacity: .2; border-radius: 50%;
        position: absolute;
        top: 67px;
        left: 0;
        animation: shadow .5s linear infinite;
    }
        .box::after{
            border-radius: 5px;
            background: #fff;
            animation: rotate .5s linear infinite;
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 50px;
            height: 50px;
        }
@keyframes shadow {
    0%, 100% {transform: scaleX(1);}
    50% {transform: scaleX(1.2);}
}

@keyframes rotate {
    0% {
    transform: translateY(0) ;
  }
    25% {
        transform: translateY(10px);
    }
    50% {
        transform: translateY(20px) scale(1.1, 0.9);
       
    }
    75% {
        ransform: translateY(10px) ;
    }
    100% {
        transform: translateY(0) ;
    }
}