IsekaiMisc/modules/ext.isekai.ve.js

if (mw.config.get('skin') === "timeless") {
    var veReadyTimer = null;
    var veReady = false;
    var isFloating = false;
    function updateToolbar() {
        if (!veReady) return;
        if (window.innerWidth >= 851 && !isFloating) {
            if (!isFloating) {
                var headerContainer = document.getElementById("mw-header-container");
                var headerHack = document.getElementById("mw-header-hack");
                var offset = headerContainer.offsetHeight + headerHack.offsetHeight;
                ve.init.target.toolbarScrollOffset = offset;
                isFloating = true;
            }
        } else if (isFloating) {
            ve.init.target.toolbarScrollOffset = 0;
            isFloating = false;
        }
    }

    function waitForVE() {
        if (ve && ve.init && ve.init.target) {
            veReady = true;
            updateToolbar();
            if (veReadyTimer) {
                clearInterval(veReadyTimer);
            }
        }
    }

    veReadyTimer = setInterval(waitForVE, 500);

    window.addEventListener('resize', updateToolbar, { passive: true });
}