.loader {
	animation: rotate 1s infinite;
    height: 50px;
    width: 50px;
}

.loader:before,
.loader:after {
    border-radius: 50%;
    content: "";
    display: block;
    height: 20px;
    width: 20px;
}

.loader:before {
    animation: ball1 1s infinite;
    background-color: #fff;
    margin-bottom: 10px;
}
.loader:after {
    animation: ball2 1s infinite;
    box-shadow: 30px 0 0 #fff;
}

@keyframes rotate {
	0% { transform: rotate(0deg) scale(0.8) }
	50% { transform: rotate(360deg) scale(1.2) }
	100% { transform: rotate(720deg) scale(0.8) }
}

/* @keyframes ball1 {
    0% {
        box-shadow: 30px 0 0 var(--span-color);
    }
    50% {
        box-shadow: 0 0 0 var(--span-color);
        margin-bottom: 0;
        transform: translate(15px, 15px);
    }
    100% {
        box-shadow: 30px 0 0 var(--span-color);
        margin-bottom: 10px;
    }
} */

@keyframes ball2 {
    0% {
        box-shadow: 30px 0 0 #fff;
    }
    50% {
        box-shadow: 0 0 0 #fff;
        margin-top: -20px;
        transform: translate(15px, 15px);
    }
    100% {
        box-shadow: 30px 0 0 #fff;
        margin-top: 0;
    }
}