vrtmrz_ninja-cursor/styles.css

.x-cursor {
    position: relative;
    top: 0;
    left: 0;
    height: var(--cursor-height);
    width: 8px;
    display: inline-block;
    user-select: none;
    background: var(--text-normal);
    transform: translate3d(var(--cursor-x2), var(--cursor-y2), 0);
    opacity: 0;
    pointer-events: none;
    visibility: var(--cursor-visibility);
}

.x-cursor:after {
    content: "";
    height: var(--cursor-drag-height);
    width: var(--cursor-drag-width);
    display: inline-block;
    user-select: none;
    background: linear-gradient(to right, var(--text-normal), transparent);
    transform: rotate(var(--cursor-drag-angle));
    transform-origin: 4px center;
    opacity: 0.5;
    pointer-events: none;
}

.x-cursor0 {
    animation: a1 75ms cubic-bezier(0.34, 1.26, 0.84, 1) 0s both;
}

.x-cursor1 {
    animation: a2 75ms cubic-bezier(0.34, 1.26, 0.84, 1) 0s both;
}

:root {
    --cursor-x1: "0px";
    --cursor-x2: "0px";
    --cursor-y1src: "0px";
    --cursor-y2src: "0px";
    --cursor-offset-y: "0px";
    --cursor-drag-distance: "0px";
    --cursor-drag-angle: "0deg";
    --cursor-drag-width: "0px";
    --cursor-drag-height: "0px";

    --cursor-height: 18px;
    --cursor-y1: calc(var(--cursor-y1src) + var(--cursor-offset-y));
    --cursor-y2: calc(var(--cursor-y2src) + var(--cursor-offset-y));
    --cursor-visibility: "hidden";
    /* --cursor-color: --text-normal; */
}

.cursorWrapper {
    display: block;
    overflow: hidden;
    user-select: none;
    pointer-events: none;
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    padding: 0;
}

@keyframes a1 {
    0% {
        transform: translate3d(var(--cursor-x1), var(--cursor-y1), 0);
        background-color: var(--text-normal);
        opacity: 0;
    }

    4% {
        opacity: 1;
    }

    80% {
        opacity: 0.95;
    }

    90% {
        transform: translate3d(var(--cursor-x2), var(--cursor-y2), 0);
        background-color: var(--text-normal);
        opacity: 0.9;
    }

    100% {
        opacity: 0;
    }
}

@keyframes a2 {
    0% {
        transform: translate3d(var(--cursor-x1), var(--cursor-y1), 0);
        background-color: var(--text-normal);
        opacity: 0;
    }

    4% {
        opacity: 1;
    }

    80% {
        opacity: 0.95;
    }

    90% {
        transform: translate3d(var(--cursor-x2), var(--cursor-y2), 0);
        background-color: var(--text-normal);
        opacity: 0.9;
    }

    100% {
        opacity: 0;
    }
}