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To change a page’s appearance before capturing it, inject CSS after navigation and before the screenshot. In Playwright, call page.addStyleTag(); use its content option for inline CSS, or provide a stylesheet path or URL. If you use Playwright Test and want CSS to affect only the snapshot, pass a stylesheet through stylePath to toHaveScreenshot().
Inject CSS into a Playwright page
Use page-level injection when you want the modified styling to remain active for later page interactions or want to inspect the changed page before capture. This complete JavaScript example hides a cookie banner and sets a white background:
const { chromium } = require('playwright');
(async () => {
const browser = await chromium.launch();
const page = await browser.newPage();
await page.goto('https://example.com');
await page.addStyleTag({
content: `
.cookie-banner { display: none !important; }
body { background: #fff; }
`,
});
await page.screenshot({ path: 'page.png', fullPage: true });
await browser.close();
})();Replace https://example.com with the page you need. The content value is raw CSS. addStyleTag() also accepts a CSS file path or a stylesheet URL. See the Playwright Page API.
Make the CSS target precise
Use a selector that matches the element on the target page; .cookie-banner is only an example. For screenshot-only removal, display: none !important removes the element from layout as well as view. If you need to preserve its space, use visibility: hidden instead. For visual tests, avoid selectors that could hide meaningful content if the page structure changes.
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Apply CSS only while a Playwright Test snapshot is captured
When styling is needed only for a visual comparison—not for subsequent page interactions—use Playwright Test’s stylePath option. Save a stylesheet, for example as screenshot.css:
iframe,
.cookie-banner {
visibility: hidden;
}Then pass its path to toHaveScreenshot():
import path from 'node:path';
await expect(page).toHaveScreenshot({
stylePath: path.join(__dirname, 'screenshot.css'),
});This is intended for screenshot-specific changes, such as suppressing volatile elements so visual comparisons are more repeatable. The stylesheet applies during capture rather than becoming a persistent page-level change. See Playwright visual comparisons.
#1 Best Overall
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MNN 15.6" FHD 60Hz Portable Monitor USB-C HDMI IPS HDR Gaming Laptop
- Full HD Portable Monitor - MNN 15.6inch portable laptop monitor with 1920*1080 resolution, advanced IPS glossy screen support 178° full viewing angle, it renders accurate and bright color, draws you into the video or game with lifelike colors and amazing detail.It can effectively reduce blue light radiation damage, no flickering, eye-care, and make it easier to watch for a long time.A second monitor for working from home.
- Double Type-C Port -For Plug & Play, the MNN monitor provides 2 Full Feature Type-C ports. Only One USB Type-C Cable is required to connect to the power supply & display signal transmission. NOTE: Your device should support thunderbolt 3.0 or USB 3.1 Type C DP ALT-MODE.which supports multiple connect ways to your laptops, PC, Phones, Macbooks, PS5/PS4, Xbox, and Switch.
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Use Puppeteer’s page-level CSS injection
Puppeteer also provides page.addStyleTag(). Inject the CSS after navigation and before capture:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://example.com');
await page.addStyleTag({
content: '.cookie-banner { display: none !important; }',
});
await page.screenshot({ path: 'page.png', fullPage: true });
await browser.close();
})();Puppeteer documents this API as adding a style tag or stylesheet link to the page. See Puppeteer’s Page.addStyleTag() reference.
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Rank #2
InnoView Portable Monitor, 15.6 Inch FHD 1080P HDMI USB C Second External Monitor for Laptop, Desktop, MacBook, Phones, Tablet, PS5/4, Xbox, Switch, Built-in Speaker with Protective Case
- [Portable Monitor Laptop] InnoView laptop screen extender is no need of app and drivers! 15.6 in is a more suitable size for traveling or remote work. Suitable for traveler, student, gamer, engineer, and white-collar worker to connect HP laptop, Lenovo laptop, Dell laptop, Asus laptop, Macbook, iPhone, game console, tablet, PS, Xbox, etc. The laptop screen can expand the viewing area and be more efficient when playing games, working, meeting and studying
- [Plug and Play] The travel monitor for laptop provides 2 full-function Type-C ports and 1 HDMI port to connect most devices. Only one USB-C cable is needed to connect the external display to computer, and it supports power pass-through reverse charging. Note: Your device should support Thunderbolt 3.0/4.0 or USB 3.1 Type-C DP ALT-MODE. If not, you can connect via HDMI and power cable(NOT INCLUDE IN THE PACKAGE)
- [IPS FHD USB C Monitor] 15.6 inch portable screen with a resolution of 1920*1080P, made of A+ IPS screen, supports 178° full viewing angle, can present accurate and vivid colors. Combined with HDR, images and videos present realistic colors and amazing details. Low blue light can effectively reduce blue light radiation damage, no flicker, eye protection, making it easier for you to work and perform multiple tasks at the same time
- [Versatile Cover and Stand] Equipped with a scratch-resistant smart protective cover made of durable PU leather, it can also be used as a stand when working. Two grooves are used to adjust the angle and fix the external monitor. It can also provide all-round protection for the 1080p monitor when going out or traveling, suitable for putting in a backpack to avoid squeezing. Optional landscape and portrait modes, save more desktop space
- [Worry-free Purchase] Since the output power of each device is different, the screen may flicker or restart. You can power the laptop monitor to solve it. Provide a 30-day return policy and 18-month warranty (excluding external force damage). If you have any concerns, please let us know (displayed on the back of the monitor)
Choose page injection or capture-only styling
- Use
page.addStyleTag()if later automation steps should see the styling, or you want to inspect the modified page before taking the screenshot. This applies to general Playwright and Puppeteer page workflows. - Use Playwright Test
stylePathwhen styling should be limited to the visual snapshot operation.
In either workflow, apply the CSS before capture and wait for the page state your task requires. The APIs do not prescribe one universal wait strategy for every website: a page may need additional time or a condition specific to its content before it is ready to screenshot.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or skip the browser setup
ScreenshotNeo is a website screenshot API and MCP server for developers. A single request can return an image or PDF, without you setting up a browser script:
Quick Recap
Bestseller No. 4
Best Value
Sale
VILVA 15.6" FHD IPS USB-C HDMI Portable Monitor
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Anyuse 15.6" FHD IPS USB-C HDMI Portable Monitor
- 15.6" FHD Portable Monitor - Featuring a 1920*1080P resolution, 178°FULL viewing angle, HDR, and Low Blue Light Super Clear IPS A-grade screen, this Anyuse portable screen for laptop enhanced visual experience, reduces eye strain and fatigue.
- Double Type-C Port -For Plug & Play - Anyuse portable monitor features 2 full-featured Type-C ports and 1 MINI HDMI port. You can easily access your favorite devices with just one USB Type-C or MINI HDMI cable. NOTE: Your device should support Thunderbolt 3.0/4.0 or USB 3.1 Type C DP ALT-MODE.
- Portable & Light Weight - At just 1.37lbs and 0.04 inch thin, this portable laptop monitor is ultra-portable and perfect for on-the-go productivity or gaming. flexible to use anywhere you need a second screen for laptop. bringing you efficiency for meetings, work from home, and presentations.
- Able to Balance Work and Play - With multiple display modes [copy mode/extension mode/second screen mode]. During meetings,it can copy your laptop's content as a second screen to share with others.At work, it can be used as a second extended screen to increase productivity. In life, adjusting to HDR mode can upgrade the image to a new level, providing you with brighter highlights, more realistic colors and images.Two built-in speakers provide an amazing viewing and gaming experience.
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Rank #3
KYY Portable Monitor 15.6" 1080P Computer Monitor Screen Extender w/Cover
- [ FHD 1080P PORTABLE MONITOR ]: KYY using a 15.6''(8.8"x14.2") advanced IPS screen with 178° wide viewing angle, Delivers 1920*1080 breathtaking viewing quality and HDR technology, KYY portable gaming monitor has excellent color rendering ability, provide you the clearer, smooth, excellent performance in gaming/multimedia. It can effectively reduce blue light radiation damage, no flickering, eye-care, and make it easier to watch for a long time
- [ WIDE COMPATIBILITY ]: KYY portable monitor for laptop equipped with 2 Full Function Type-C ports and Mini-HDMI port, easy access to your favorite devices with 1 cable solution as long as your device support Thunderbolt 3 or 3.1 USB-Type-C, compatible with most laptop, smartphone, PC, PS4, XBOX and more.
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- [ DURABLE SMART COVER ]: Comes with a scratch-proof smart cover made of durable PU leather exterior, doubles as a stand, provides comprehensive protection and frameless magnetic design for this portable computer monitor. There are two grooves in the cover base to give at least some choice of viewing angle for your comfort for less cumbersome installation
- [ LIGHTWEIGHT BUT POWERFUL ]: KYY portable external monitor can work in both landscape and portrait mode, can be used as a gaming monitor, screen extender for laptop or phone. It has a unique designed Premium gray metal appearance, 2 built-in speakers to play audio, a friendly menu control wheel for setting, and 24/7 professional support team
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo documentation for API details. ScreenshotNeo accepts cookie and consent banners like a visitor and removes more than 60 known consent platforms, newsletter popups, and chat widgets before capture; each cleanup step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits cost nothing, and response headers identify the page verdict and billing status. Its MCP server gives AI agents tools for screenshots, page information, and PDFs. The free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000. Sign up for 1,000 free screenshots a month, with no card required.
Troubleshoot CSS that does not appear in the screenshot
- The target element is still visible: Check that the selector matches the page’s actual markup and that the stylesheet was injected before the screenshot call.
- The page changes after injection: A site may update its content or state after navigation. Wait for the relevant content or state before capture, then apply or verify the intended styling at the appropriate point in your workflow.
- The page is styled beyond the screenshot: That is expected with page-level injection. If you are using Playwright Test and want a capture-only stylesheet, use
stylePathwithtoHaveScreenshot(). - The screenshot still contains an iframe or dynamic widget: A selector must match the element in the rendered page. For Playwright Test snapshots, a stylesheet can hide volatile elements such as iframes; check whether the element is part of the page or rendered in a separate frame before choosing a selector.
- A stylesheet path or URL does not load: Confirm that the path or URL points to a valid CSS file and is available to the browser workflow. As a diagnostic, try a small inline rule using
content.
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