/* Replacement for `body { background-attachment: fixed; }`, which has
   performance issues when scrolling on large displays. See #1394. */
body::before {
    content: ' ';
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-color: var(--bs-body-bg);
    background: url(../img/grid.png) repeat-x;
    will-change: transform;
    z-index: -1;
}