SEO, performance, and hosting · Lesson 4 of 8 · 10 minutes

SEO, performance, and hosting: Viewport metadata

A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.

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Your objectives

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1
Build viewport metadata
Build this first target: <head>; <title> inside <head> containing “Mobile workshop guide”. Inspect the structure before checking the lesson.
Hint & worked example
A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.
The requested elements, attributes, content, and hierarchy exist outside comments.
```
<head><title>Mobile workshop guide</title></head>
```
Common mistake to avoid: A visual appearance alone guarantees the intended HTML meaning.
2
Extend the viewport metadata example
Extend your file to include: <head>; <title> inside <head> containing “Mobile workshop guide”; <meta> inside <head> (name="viewport", content="width=device-width, initial-scale=1"). Inspect the structure before checking the lesson.
Hint & worked example
A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.
The requested elements, attributes, content, and hierarchy exist outside comments.
```
<head><title>Mobile workshop guide</title><meta name="viewport" content="width=device-width, initial-scale=1"></head>
```
Common mistake to avoid: Replacing semantic elements with generic divs automatically improves accessibility.
3
Verify the complete viewport metadata pattern
Finish the pattern with: <head>; <title> inside <head> containing “Mobile workshop guide”; <meta> inside <head> (name="viewport", content="width=device-width, initial-scale=1"); <main>; <h1> inside <main> containing “Mobile workshop guide”. Inspect the structure before checking the lesson.
Hint & worked example
A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.
The requested elements, attributes, content, and hierarchy exist outside comments.
```
<head><title>Mobile workshop guide</title><meta name="viewport" content="width=device-width, initial-scale=1"></head><main><h1>Mobile workshop guide</h1></main>
```
Common mistake to avoid: A visual appearance alone guarantees the intended HTML meaning.

Understand the pattern

A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.

Misconceptions to reject

A visual appearance alone guarantees the intended HTML meaning.
Replacing semantic elements with generic divs automatically improves accessibility.

The preview is a sanitized subset, not a full browser compatibility test.

Worked example and expected result

<head><title>Mobile workshop guide</title><meta name="viewport" content="width=device-width, initial-scale=1"></head><main><h1>Mobile workshop guide</h1></main>

A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.

Try a variation

Adapt the final example to a different project name while retaining its structure and relationships. A different context still needs a real browser and accessibility check.

Explain it

Which statement correctly explains viewport metadata?A device-width viewport lets responsive layouts use the device width rather than a wide desktop layout viewport.A visual appearance alone guarantees the intended HTML meaning.Replacing semantic elements with generic divs automatically improves accessibility.

Apply it elsewhere

You reuse viewport metadata in a different project. What must still be verified?Nothing; passing a single exercise guarantees every future use.Only whether the source code has the same number of lines.The meaning, relationships, and accessible names in the new document.

Keep the momentum.

Complete the lab, then explain and apply the pattern.

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