* {
    box-sizing: border-box;
}

body {
    background-color:   #2c3e50; 
    display: flex;      
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;    
    
}
.kinetic {
    position: relative;
    height: 80px;
    width: 80px;
    
}

.kinetic::after, .kinetic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    border: 50px solid transparent;
    border-bottom-color:#fff;
    animation: rotateA 2s linear infinite 0.5s;

}
.kinetic::before {
    transform: rotate(90deg);
    animation: rotateB 2s linear infinite;
}

@keyframes rotateA {
    0%, 25% {
        transform: rotate(0deg);
    }
    50%, 75% {
        transform: rotate(180deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes rotateB {
    0%, 25% {
        transform: rotate(90deg);
    }
    50%, 75% {
        transform: rotate(270deg);
    }
    100% {
        transform: rotate(450deg);
    }
}