Not everyone uses a mouse to explore a website. Good HTML must also make sense through a keyboard or screen reader.
What You Need to Know
At 200 percent zoom, a form should still fit and remain understandable. Check that labels stay connected to controls, instructions remain visible, and no important information is clipped.
Try the Example
Take a look at the example. We’ll explain the important lines right below it.
<main>
<h1>Join the book club</h1>
<form action="/join" method="post">
<label for="member-email">Email</label>
<input id="member-email" name="email" type="email" required>
<button type="submit">Join</button>
</form>
</main>Let’s Read the Code
- <main>: The main element marks the primary page content.
- <h1>: A top-level heading explains what the page is about.
- for: For connects a label or output with a control by ID.
- id: An id uniquely identifies an element on this page.
Read the named elements and attributes together. They explain how the browser connects this feature to the rest of the page.
What Happens in the Browser?
Try this with Tab and Shift+Tab. If you can, inspect the accessibility tree too; appearance alone does not tell the whole story.
Try a different way of reading. Read only the headings and labels, or navigate through links without looking at the rest of the page. If the page still makes sense, the underlying HTML is probably doing an important part of its job.
Your Turn
Use Tab and Shift+Tab to visit the controls, then read their labels aloud. Is the purpose of each one clear?
Common Beginner Mistakes
- Judging the page only by how it looks, without checking its meaning and keyboard behavior.
- Check the same result using both the browser and a keyboard, not only by looking at the screen.
Key Takeaways
- At 200 percent zoom, a form should still fit and remain understandable.
- <main>: The main element marks the primary page content.
- Remember that HTML form rules help the visitor, but server-side code must decide whether received data is valid.