Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteTo add CSS to a specific frame, get its Puppeteer Frame object and call frame.addStyleTag({ content: cssText }). For an iframe, do not use page.addStyleTag() unless you mean to style the page’s main frame: that method is a shortcut for page.mainFrame().addStyleTag().
Find the frame you want to style
Puppeteer exposes the current frame tree through page.frames(), page.mainFrame() and each frame’s childFrames(). Find the intended frame using a property that identifies it reliably, such as its URL or name. The example below matches a URL substring; replace it with a condition that fits your page.
As an Amazon Associate I earn from qualifying purchases.
const frame = page.frames().find(frame =>
frame.url().includes('/embedded-content')
);
if (!frame) {
throw new Error('Target frame was not found');
}
await frame.addStyleTag({
content: `
body {
background: #f5f5f5;
}
.notice {
color: #174ea6;
}
`,
});The Puppeteer Frame API describes frames as potentially nested, like iframe elements. Code running in one frame does not automatically affect a frame nested inside it. If the document you need to style belongs to a nested frame, select that frame rather than its parent.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Inspect frame names or traverse children
If URL matching is not sufficient, inspect the frame tree or the element associated with a frame. Puppeteer’s Frame API demonstrates reading a frame element’s name attribute and then using a selector within that frame.
#1 Best Overall
- FULL HD IPS DISPLAY - Enjoy vibrant, crystal-clear images with 178-degree wide-viewing angles
- AMD RYZEN 3 30 PROCESSOR - Everyday performance you can count on; Multitask, stream, game casually, and edit photos smoothly with responsive power and vibrant HDR visuals
- ENJOY UP TO 14 HOURS AND 15 MINUTES OF BATTERY LIFE - HP Fast Charge restores battery from 0 to 50% in approximately 45 minutes
- AMD RADEON 610M GRAPHICS - Experience smooth entertainment; Built for streaming and multitasking, enjoy realistic visuals and efficient performance for work and play
- STORAGE AND MEMORY - 512 GB PCIe NVMe M.2 SSD offers fast speed and efficient storage; and 8 GB LPDDR5 RAM memory boosts performance with higher bandwidth
function printFrames(frame, depth = 0) {
console.log(' '.repeat(depth * 2), frame.url());
for (const child of frame.childFrames()) {
printFrames(child, depth + 1);
}
}
printFrames(page.mainFrame());Use this kind of inspection to identify the right frame before injecting CSS; avoid relying on array position if the page can add or reorder frames.
Choose how to provide the stylesheet
Frame.addStyleTag() accepts CSS content, a local file path or a stylesheet URL. Await the call so the style or link element is inserted before the next step that depends on it. The API returns a handle to the inserted element: a <style> for content or path, and a <link> for a URL.
Rank #2
- Intel Celeron N4120: 4 Cores & Threads, 1.1GHz Base Clock, Up to 2.6GHz Boost Clock, 4MB Cache, Intel UHD Graphics 600. The perfect combination of performance, power consumption, and value helps your device handle multitasking smoothly and reliably with four processing cores to divide up the work.
| Option | Example | Use it when |
|---|---|---|
content |
await frame.addStyleTag({ content: 'body { color: navy; }' }); |
You have short, generated or inline CSS. |
path |
await frame.addStyleTag({ path: './styles/frame.css' }); |
You want to load a local CSS file. A relative path resolves from Node.js process.cwd(). |
url |
await frame.addStyleTag({ url: 'https://example.test/frame.css' }); |
You want Puppeteer to add a link to a remote stylesheet. |
These options are documented in FrameAddStyleTagOptions and Frame.addStyleTag(). If you use path, check the process working directory rather than assuming the path is relative to the JavaScript file.
Use evaluate() for custom insertion logic
For routine injection, addStyleTag() is the direct stylesheet API. If you need custom DOM logic, frame.evaluate() runs in that frame’s context, where you can create and append a style element:
Rank #3
- Stunning 15.6" FHD IPS Display: Experience crisp 1920x1080 resolution on this 15.6 inch laptop with an IPS panel that delivers wide viewing angles and vivid colors. The narrow-bezel design maximizes screen real estate for comfortable viewing on this Win 11 laptop, whether you're studying or working.
- Celeron J4105 Processor & 256GB SSD: Powered by a reliable Celeron J4105 processor paired with 12GB DDR4 memory and a fast 256GB M.2 SSD. This laptop computer supports SSD expansion up to 2TB and TF card expansion up to 1TB, so your storage grows with your needs. Delivers smooth multitasking for daily productivity.
- AI-Powered Win 11 Laptop: Built-in AI features enhance your productivity with smart assistance for writing, summarizing, and task management. Pre-installed with Win 11 and includes Office 365 subscription. This student laptop is backed by 1-year warranty and 24/7 customer support.
- All-Day 7000mAh Battery & 180° Hinge: The high-capacity 7000mAh battery keeps this laptop powered through long classes or meetings. The 180-degree lay-flat hinge lets you share your screen effortlessly during presentations. This durable laptop computer adapts to your dynamic workflow.
- Versatile Connectivity Hub: Equipped with USB 3.2, Type-C, Mini HDMI, and 3.5mm audio jack to connect all your peripherals. Stay online anywhere with high-speed 5G WiFi and Bluetooth 4.2. This college laptop keeps you connected at home, in the library, or on the go.
await frame.evaluate(() => {
const style = document.createElement('style');
style.textContent = 'body { color: navy; }';
document.head.append(style);
});See Puppeteer’s documentation for Frame.evaluate(). Calling evaluate() on the wrong frame has the same scope problem as calling the wrong style method: it will not target a sibling or nested frame for you.
Common problems and fixes
- The iframe looks unchanged: confirm you selected the frame that owns the document.
page.addStyleTag()affects the main frame; calladdStyleTag()on the target child frame instead. See Page.addStyleTag(). - The frame was not found: inspect
page.frames()and the tree frompage.mainFrame(). Make the matching condition specific to the actual frame URL or identity, and account for nested frames. - The local stylesheet cannot be loaded: verify the file exists relative to Node.js
process.cwd()when using a relativepath. - Later code runs before the CSS is inserted: await
frame.addStyleTag()before checking styles or capturing the page. - CSS injection runs in the wrong context:
Frame.evaluate()executes in the frame object on which it is called. Select the intended frame first.
Or skip the browser setup
If your goal is a website screenshot rather than custom Puppeteer automation, ScreenshotNeo can return an image or PDF from one GET request. Its clean-shot options accept cookie banners and remove 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 response headers report the page verdict and whether it was billed. ScreenshotNeo also offers an MCP server with tools for AI agents, including Claude, Cursor and other MCP clients.
Install no browser code for a basic capture; send your URL and API key. See the ScreenshotNeo documentation for API options.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Rank #4
- Efficient Performance for Everyday Computing: Powered by Intel N150 processor with up to 3.6 GHz Intel Turbo Boost Technology, 6 MB L3 cache, 4 cores, and 4 threads, this HP laptop delivers responsive performance for web browsing, streaming, document editing, and multitasking. Paired with 4GB LPDDR5 RAM and 128GB UFS storage, it handles daily tasks smoothly. Includes 1-year Microsoft 365 Personal subscription for Word, Excel, PowerPoint, and cloud storage to maximize your productivity.
- 14-Inch HD Micro-Edge Display:Enjoy clear visuals on the 14-inch HD (1366 x 768) anti-glare screen with 250-nit brightness and 62.5% sRGB coverage. The micro-edge bezel delivers a 79% screen-to-body ratio in a compact design. An HP True Vision 720p HD camera with noise reduction and dual-array microphones supports clear video calls, remote work, and online learning.
- Modern Connectivity and Wireless Technology: Stay connected with Wi-Fi 6 (2x2) for faster wireless speeds and Bluetooth 5.4 for seamless pairing with accessories. Versatile port selection includes 1 USB Type-C 10Gbps with DisplayPort 1.2 for external displays, 2 USB Type-A 5Gbps ports for peripherals, 1 HDMI 1.4b port, 1 headphone/microphone combo jack, and 1 multi-format SD media card reader. Connect monitors, transfer files quickly, and expand your workspace with ease.
- All-Day Battery Life and Portable Design: Enjoy up to 11 hours of video playback, 7.5 hours of mixed usage, or 7.5 hours of wireless streaming on a single charge, perfect for students and professionals on the go. Weighing just 3.24 lb and measuring 12.76" x 8.86" x 0.71", this lightweight laptop fits easily in backpacks and bags. The stylish willow green top cover with matte finish and natural silver keyboard deck with vertical brushing pattern offer a modern, professional look.
- AI-Enhanced Productivity: Access Microsoft Copilot instantly with the dedicated Copilot key for faster assistance. AI Noise Reduction filters background sounds and improves voice clarity during calls. Dual speakers provide clear audio, while the full-size natural silver keyboard and HP Imagepad support comfortable typing and navigation.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpThe free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000. Sign up for the free plan.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Frequently Asked Questions
Does Puppeteer’s Page.addStyleTag() style an iframe?
No. It is a shortcut for adding a style tag to the page’s main frame. Call addStyleTag() on the iframe’s Frame object to style that frame.
Best Value
- 【Powerful Performance】Equipped with an Intel N150 CPU, featuring up to 4.4 GHz, ensuring efficient and powerful multitasking capabilities.
- 【Versatile Connectivity】Stay connected with multiple ports including USB 3.0 Type-C, USB 3.0 Type-A, and a headphone/mic combo jack, with Wi-Fi and Bluetooth for seamless wireless networking.
Can I add CSS to a nested frame?
Yes. Select the nested frame itself and call its addStyleTag() method; styling a parent frame does not automatically affect nested frames.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
