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How to Capture a Playwright Screenshot with Custom CSS

Use screenshot-time CSS for direct Playwright captures, stylePath for Test visual assertions, or addStyleTag() to install CSS on the page first.
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For a one-off Playwright screenshot, pass CSS text in page.screenshot({ style }). For a reusable CSS file in a Playwright Test visual assertion, use expect(page).toHaveScreenshot({ stylePath }). If the CSS needs to be installed on the page before capture or used in later interactions, call page.addStyleTag() first. These are different workflows with different option names.

Choose the right way to add CSS

Need Use When it applies
Apply a short CSS override only for a direct screenshot page.screenshot({ style: '...' }) Playwright applies the CSS while making the screenshot; available starting in Playwright 1.41. Playwright Page API
Use a stylesheet file with a visual snapshot assertion expect(page).toHaveScreenshot({ stylePath: '...' }) For the Playwright Test runner’s screenshot assertion. Playwright visual comparisons
Install CSS on the page before capture or further interactions page.addStyleTag({ content: '...' }) Changes the page before the screenshot rather than applying screenshot-time styling. Playwright Page API

Apply inline CSS to a direct screenshot

Use the Page API’s style option for a one-off capture. This runnable example hides a cookie banner and sets a predictable background:

import { chromium } from 'playwright';

const browser = await chromium.launch();
try {
  const page = await browser.newPage();
  await page.goto('https://example.com');

  await page.screenshot({
    path: 'screenshot.png',
    fullPage: true,
    style: `
      .cookie-banner { display: none !important; }
      body { background: white !important; }
    `,
  });
} finally {
  await browser.close();
}

Replace .cookie-banner with a selector that matches the target page. The !important declarations help the override win against existing page styles. The style option applies while the screenshot is made; it is not the way to install a persistent stylesheet on the live page. See the official Page API reference.

Use a CSS file in Playwright Test

If the screenshot is a visual assertion, put volatile-element rules in a dedicated CSS file and pass its path as stylePath. This API belongs to Playwright Test, not the direct page.screenshot() call.

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import { test, expect } from '@playwright/test';
import path from 'node:path';

test('page visual snapshot', async ({ page }) => {
  await page.goto('https://example.com');
  await expect(page).toHaveScreenshot({
    stylePath: path.join(__dirname, 'screenshot.css'),
  });
});

For example, screenshot.css can contain:

.cookie-banner {
  display: none !important;
}

iframe {
  visibility: hidden;
}

Playwright documents this stylesheet pattern for filtering dynamic or volatile elements in screenshot comparisons. The assertion API requires the Playwright Test runner. See Visual comparisons and the PageAssertions API.

Inject CSS onto the page before capture

Use page.addStyleTag() when you want a stylesheet added to the page itself, including for later interactions or captures:

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await page.addStyleTag({
  content: '.cookie-banner { display: none !important; }',
});
await page.screenshot({ path: 'screenshot.png' });

addStyleTag() adds a style element from CSS content, or can add a stylesheet link from a path or URL. Unlike screenshot-time style, it modifies the page before capture. Refer to the Page API for the method details.

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Stabilize captures and visual comparisons

  • Set fullPage: true when the capture should include the full scrollable document. Without it, the screenshot is limited to the viewport. See the Page API.
  • If animation causes unwanted variation, use animations: 'disabled' in the screenshot options. Playwright documents that this stops CSS animations, transitions and Web Animations for the screenshot. See the Page API.
  • toHaveScreenshot() takes screenshots until two consecutive results match, then compares the last image with the expected snapshot. A CSS override can remove volatile visual content, but it does not eliminate differences caused by the rendering environment. See PageAssertions.
  • Keep baseline creation and comparison environments consistent. Playwright notes that rendering can vary with operating system, browser version, settings, hardware, power state and headless mode. See Visual comparisons.

Troubleshoot CSS screenshot issues

The CSS has no visible effect

  • Check that the selector matches the element on the captured page and that the CSS is valid.
  • For direct capture, confirm you passed a CSS string as style to page.screenshot(). For a test assertion, pass a file path as stylePath to toHaveScreenshot(); the options are not interchangeable.
  • If the rule must be in place before other page actions, use page.addStyleTag() before those actions and before capture.

The test runner rejects the screenshot option

Check which API is receiving the option. stylePath is for Playwright Test’s toHaveScreenshot() assertion, while style is CSS text for the Page API screenshot call. The documented style screenshot option is available starting in Playwright 1.41; consult the Page API and verify the version installed in the project.

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The screenshot still changes between runs

Hide or normalize dynamic content with the CSS override, disable animations when appropriate, and keep the browser and machine settings consistent between snapshot generation and comparison. Playwright’s visual-comparison guidance explains that environmental differences can affect rendering: Visual comparisons.

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Or skip the browser setup

ScreenshotNeo can return a screenshot from one GET request. Its clean-shot process accepts the cookie or consent banner like a visitor and removes more than 60 known consent platforms, newsletter popups and chat widgets before capture; each step can be turned off. Bot checks or CAPTCHAs, blank pages, timeouts, failed loads and cache hits cost nothing, and responses report the page verdict and billing status in headers. It also offers an MCP server with screenshot, page-info and PDF tools for AI agents, and its free plan includes 1,000 shots per month without a card.

For a quick capture, use this cURL request (replace the URL with the page you need):

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