loader.css

#indicator {
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 400px;
    height: 400px;


    .circle {
        position: absolute;
        margin: auto;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        border-radius: 50%;
        background: rgba(138, 43, 226, 0.02);

        &:nth-of-type(1) {
            width: 200px;
            height: 180px;
            animation: rt 6s infinite linear;
            box-shadow: 0 0 1px 0 blueviolet,
                inset 0 0 10px 0 blueviolet;
        }

        &:nth-of-type(2) {
            width: 180px;
            height: 200px;
            animation: rt 10s infinite linear;
            box-shadow: 0 0 1px 0 darkviolet,
                inset 0 0 10px 0 darkviolet;
        }

        &:nth-of-type(3) {
            width: 210px;
            height: 190px;
            animation: rt 5s infinite linear;
            box-shadow: 0 0 1px 0 darkmagenta,
                inset 0 0 10px 0 darkmagenta;
        }

        &:nth-of-type(4) {
            width: 190px;
            height: 210px;
            animation: rt 15s infinite linear;
            box-shadow: 0 0 1px 0 magenta,
                inset 0 0 10px 0 magenta;
        }
    }
}

@keyframes rt {
    100% {
        transform: rotate(360deg);
    }
}