fix(render): disable browser scroll anchoring on the table holder

src/scss/tabulator.scss

@@ -440,6 +440,7 @@ $rangeHeaderTextHighlightBackground: #000000 !default; //header text color when
 		width:100%;
 		white-space: nowrap;
 		overflow:auto;
+		overflow-anchor: none;
 		-webkit-overflow-scrolling: touch;
 
 		&:focus{

test/e2e/overflow-anchor.spec.ts

@@ -0,0 +1,21 @@
+import { test, expect } from "@playwright/test";
+import { join } from "path";
+
+// Regression coverage for disabling browser scroll anchoring on the table
+// holder. The virtual renderer manages scrollTop/padding itself; Chrome's
+// scroll anchoring double-compensates when rows are inserted above the
+// viewport, causing drift on scroll-up. The fix sets overflow-anchor:none on
+// .tabulator-tableholder. This guards that the rule survives in the built CSS
+// and is applied by the browser.
+test.describe("table holder disables browser scroll anchoring", () => {
+	test("computed overflow-anchor is none", async ({ page }) => {
+		await page.goto(`file://${join(__dirname, "scroll-jump.html")}`);
+		await page.waitForSelector(".tabulator-tableholder");
+
+		const value = await page
+			.locator(".tabulator-tableholder")
+			.evaluate((el) => getComputedStyle(el).overflowAnchor);
+
+		expect(value).toBe("none");
+	});
+});