/* HTML: <div class="loader"></div> */
.loader {
    width: 50px;
    aspect-ratio: 1;
    display: grid;
    border-radius: 50%;
    background: linear-gradient(0deg,rgb(0 0 0/50%) 30%,#0000 0 70%,rgb(0 0 0/100%) 0) 50%/8% 100%, linear-gradient(90deg,rgb(0 0 0/25%) 30%,#0000 0 70%,rgb(0 0 0/75% ) 0) 50%/100% 8%;
    background-repeat: no-repeat;
    animation: l23 1s infinite steps(12);
    position: fixed;
    top: 50%;
    left: 50%;
}

    .loader::before,
    .loader::after {
        content: "";
        grid-area: 1/1;
        border-radius: 50%;
        background: inherit;
        opacity: 0.915;
        transform: rotate(30deg);
    }

    .loader::after {
        opacity: 0.83;
        transform: rotate(60deg);
    }

@keyframes l23 {
    100% {
        transform: rotate(1turn)
    }
}