<div class="loader">

    <div class="face">

        <div class="circle"></div>

    </div>

    <div class="face">

        <div class="circle"></div>

    </div>

</div>

html,

body,

.loader {

    height: 100%;

    display: flex;

    align-items: center;

    justify-content: center;

    background-color: black;

}

.loader {

    width: 200px;

    height: 200px;

    position: relative;

}

.loader .face {

    position: absolute;

    border: 2px solid transparent;

    border-radius: 50%;

    border-top-color: var(--color);

    border-left-color: var(--color);

    animation: animate 3s linear infinite;

}

.loader .face:nth-child(1) {

    width: 100%;

    height: 100%;

    --color: gold;

    --deg: 0deg;

}

.loader .face:nth-child(2) {

    width: 70%;

    height: 70%;

    --color: lime;

    --deg: 180deg;

    animation-direction: reverse;

}

.loader .face .circle {

    position: absolute;

    width: 50%;

    height: 1px;

    top: 50%;

    left: 50%;

    background-color: transparent;

    transform: rotate(calc(var(--deg) - 45deg));

    transform-origin: left;

}

.loader .face .circle::before {

    position: absolute;

    top: -5px;

    right: -5px;

    content: '';

    width: 10px;

    height: 10px;

    background-color: var(--color);

    border-radius: 50%;

    box-shadow: 0 0 20px var(--color),

                0 0 40px var(--color),

                0 0 60px var(--color),

                0 0 80px var(--color),

                0 0 100px var(--color),

                0 0 0 5px rgba(255, 255, 0, 0.1);

}

@keyframes animate {

    from {

        transform: rotate(0deg);

    }

    to {

        transform: rotate(360deg);

    }

}