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What HTML, CSS, and JavaScript do
- HTML gives the page its structure and content, such as headings, paragraphs, and buttons.
- CSS controls how that content looks, including spacing, colors, and layout.
- JavaScript adds behavior, such as changing a heading when someone clicks a button.
A first site can be static: its files are delivered to a browser without a server-side application. It can still have a genuine JavaScript interaction. MDN’s beginner module, Your first website, organizes the work around planning, content, styling, interactivity, and publishing.
Plan a small first page
Choose one purpose for the page: for example, introduce a hobby, share a short project, or provide contact information. Decide what a visitor should see and do, then sketch a simple layout with a heading, a few sections, and one interaction. Keeping the scope small makes it easier to tell whether the HTML, CSS, and JavaScript are all working.
You need a computer, a text editor, and a browser. A code editor is useful, but a paid editor or framework is not a requirement. MDN’s guide assumes you can use your operating system and filesystem; it also recommends having a code editor and more than one browser available.
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- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
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- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Create the page files
Make a project folder with this structure. The example uses a stylesheet folder and keeps the JavaScript beside the page:
my-first-site/
├── index.html
├── script.js
└── styles/
└── style.cssCreate index.html as the page entry point. Include a descriptive page title and viewport metadata so the layout is sized appropriately on mobile screens. For the basic GitHub Pages route described by MDN, index.html is the conventional entry file.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
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- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>My First JavaScript Website</title>
<link rel="stylesheet" href="styles/style.css">
<script src="script.js" defer></script>
</head>
<body>
<main>
<h1 id="welcome-heading">A page about my project</h1>
<p>Add a short description of what this page is for.</p>
<button id="change-heading" type="button">Show a new heading</button>
</main>
</body>
</html>Style the page with CSS
Put the following in styles/style.css. The visible background and text colors make it easy to confirm that the browser has loaded the stylesheet.
body {
margin: 0;
padding: 2rem;
background: #f2f6fb;
color: #202a35;
font-family: system-ui, sans-serif;
}
main {
max-width: 42rem;
margin: 0 auto;
}
button {
padding: 0.65rem 1rem;
border: 0;
border-radius: 0.35rem;
background: #1756a9;
color: white;
font: inherit;
cursor: pointer;
}Save the file and open or refresh index.html in a browser. If the page looks unchanged, check that the stylesheet is actually named style.css, is inside the styles folder, and that the href path matches that location.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
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- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Add one JavaScript interaction
Put this code in script.js. When the visitor clicks the button, it changes the heading text.
const heading = document.querySelector("#welcome-heading");
const button = document.querySelector("#change-heading");
button.addEventListener("click", () => {
heading.textContent = "Thanks for visiting!";
});The page connects the external file with a <script> element. In this example, defer tells the browser to wait until it has parsed the document before running the script. Without defer or async, a script in the document head can execute before later page elements have been parsed, so a query for the button or heading may not find them. MDN explains external scripts and script timing in its JavaScript guide; its DOM scripting tutorial demonstrates selecting a heading and changing its text.
Rank #4
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- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
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- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Preview and debug before publishing
Open the page in a browser as you work. Test the button, check the styling, and make sure the text is readable at a narrow window width. Browser developer tools can help inspect and debug web code. MDN’s browser developer tools guide introduces those tools.
- If the style is missing, verify the stylesheet path and filename.
- If clicking does nothing, confirm the script path, the element IDs, and that the script is deferred or otherwise runs after the elements exist.
- If the browser shows an old version after a change, refresh the page and confirm the edited file was saved.
Choose where to publish a small static site
For a first static page, the hosting decision is mostly about how you want to connect files to a public URL and whether you need anything beyond static files. MDN discusses GitHub Pages and Netlify as publishing choices, and CodePen as a browser-based environment for learning and sharing small examples. See MDN’s publishing your website guide for its overview of hosting and domains.
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Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
| Choice | Useful when | What to keep in mind |
|---|---|---|
| GitHub Pages | You want a hosted site based on files in a GitHub repository. | Follow the repository’s Pages setup and ensure index.html is at the location the site is configured to publish. |
| Netlify | You want to publish a static website, including one connected to a GitHub repository. | Check the current setup options and publishing configuration in the service; interfaces and offerings can change. |
| CodePen | You want to experiment with or share a small example in a browser-based editor. | It is useful for quick experiments; consider whether you need a complete website with your own published files instead. |
These options serve different workflows rather than establishing one universally best host. A site that needs backend services has different requirements from the static first site in this walkthrough.
Publish with GitHub Pages
- Create a repository. Sign in to GitHub and create a repository for the site. Upload the project files or push them from your computer, keeping
index.htmlat the repository location you intend to publish. - Open the Pages settings. In the repository, open Settings, then select Pages. Choose the publishing source and branch or folder that contains the site files, using the available options shown for that repository.
- Visit the published URL. After saving the Pages configuration, use the URL shown in the repository’s Pages settings. MDN notes that the site can take a few minutes to appear.
MDN’s GitHub Pages instructions provide the detailed repository setup and Pages steps. The exact interface can change, so use the labels and configuration currently shown in GitHub.
Check the live version
Open the public URL and test the same things you tested locally: the page should load, the CSS should apply, and the button should change the heading. If the page itself loads but its styling or script does not, inspect the file paths. A project site may be served under a repository subpath rather than at a domain root; paths that begin at the root can then point to the wrong location. Use paths that match where the files are deployed, and verify any publishing configuration that determines the site root.
For a quick in-browser experiment, a tool such as CodePen can help you share a small example; for learning fundamentals, a JavaScript book or printed reference is optional practice material, not a prerequisite for building or publishing this page.
Quick Recap
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