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Updated: 2026年5月31日

Label And Input

Original task (JA): labelとinputの紐づけ

📌

Conclusion

Label And Input — free browser-based HTML practice

■ What this exercise teaches 「メール」というラベルと、id="email"のinputをforとidで紐づけてください。

Why it matters in real projects

forとidを一致させると、ラベルクリックで入力欄にフォーカスします。 Similar patterns appear daily in code review and production UI work.

Step-by-step workflow

1. Read the guide and understand the goal of "Label And Input" 2. Review the HTML editor pane and start from the starter code 3. Open hints if stuck; compare your diff with the sample solution 4. Click Run and inspect preview/console output 5. Auto-check looks for output containing: for=, id=. 6. After success, continue with adjacent exercises in the same category

Core concept explained

forとidを一致させると、ラベルクリックで入力欄にフォーカスします。

Technical focus

Key HTML elements in this task: label, input.

Hint before you peek at the solution

labelのforとinputのidを一致させる

Sample solution walkthrough

The solution uses HTML tags such as label, input. Check nesting and closing tags. Explanation: forとidを一致させると、ラベルクリックで入力欄にフォーカスします。 Hint recap: labelのforとinputのidを一致させる

Solution code

📝 Sample code
<label for="email">メール</label>
<input type="email" id="email" name="email">

Common mistakes for this exact task

・Skipping the hint: labelのforとinputのidを一致させる

Troubleshooting

Q: Preview does not change after Run A: Ensure you edited the HTML pane and clicked Run. Q: Looks correct but check fails A: Auto-check looks for output containing: for=, id=. Look for typos, full-width spaces, or unclosed tags. Q: Console shows errors A: Open DevTools Console and fix bracket/quote mismatches at the reported line. Q: Hard to type on mobile A: Use landscape mode or continue on desktop—the same URL keeps progress in localStorage.

Interview / portfolio tips

・Explain the techniques in "Label And Input" in your own words within 30 seconds ・Practice walking through each line of the sample solution on a whiteboard ・Be ready to discuss tags: label, input ・Mention responsive or accessibility trade-offs ・Prepare one alternative approach and why you chose this one

What to do after you pass

Move to the next exercise in the html-advanced track, then continue the learning roadmap at /en/learning/html-basic/.

Keywords

Free hands-on exercise covering labelとinputの紐づけ, html-advanced, 初級, label, input, label and input—search-friendly guide for Label And Input.

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■ Exercise task

「メール」というラベルと、id="email"のinputをforとidで紐づけてください。

Hint if stuck

labelのforとinputのidを一致させる

15pt

labelとinputの紐づけ

メールというラベルと、id="email"のinputをforとidで紐づけてください。

エラーをクリックで該当行をハイライト。✕=エラー ⚠=警告 ›=ログ。

Roadmap · All guides

Deep dive

"Label And Input" is a 初級-level HTML exercise. 「メール」というラベルと、id="email"のinputをforとidで紐づけてください。 Run it in-browser with automatic checking.

forとidを一致させると、ラベルクリックで入力欄にフォーカスします。 Similar patterns appear daily in code review and production UI work.

Pair this with the html-basic roadmap. Exercise #27 reinforces core html-advanced skills.

Step-by-step workflow

  1. Read the guide and understand the goal of "Label And Input"
  2. Review the HTML editor pane and start from the starter code
  3. Open hints if stuck; compare your diff with the sample solution
  4. Click Run and inspect preview/console output
  5. Auto-check looks for output containing: for=, id=.
  6. After success, continue with adjacent exercises in the same category

How to read the sample solution

The solution uses HTML tags such as label, input. Check nesting and closing tags. Explanation: forとidを一致させると、ラベルクリックで入力欄にフォーカスします。 Hint recap: labelのforとinputのidを一致させる

Real-world & career relevance

Forms power sign-up, contact, and checkout. Proper label/input pairing is required in WCAG accessibility audits.

Common mistakes

  • Skipping the hint: labelのforとinputのidを一致させる
  • label for and input id mismatch
  • inputs without name inside form
  • checkbox without associated label

Troubleshooting

Preview does not change after Run
Ensure you edited the HTML pane and clicked Run.
Looks correct but check fails
Auto-check looks for output containing: for=, id=. Look for typos, full-width spaces, or unclosed tags.
Console shows errors
Open DevTools Console and fix bracket/quote mismatches at the reported line.
Hard to type on mobile
Use landscape mode or continue on desktop—the same URL keeps progress in localStorage.

Interview & portfolio tips

  • Explain the techniques in "Label And Input" in your own words within 30 seconds
  • Practice walking through each line of the sample solution on a whiteboard
  • Be ready to discuss tags: label, input
  • Mention responsive or accessibility trade-offs
  • Prepare one alternative approach and why you chose this one

Glossary

form
Container for user input submitted to a server.
label
Describes an input; pair with for/id.
checkbox
On/off selection control.

Keywords covered on this page

Free hands-on exercise covering labelとinputの紐づけ, html-advanced, 初級, label, input, label and input—search-friendly guide for Label And Input.

Related dev tools

Learning roadmap

Learning roadmap →

Related exercises

Frequently asked questions

Is "labelとinputの紐づけ" free?

This exercise is free and runs entirely in your browser. No account or credit card required.

Difficulty and time?

"labelとinputの紐づけ" is level "初級". Read the guide first; beginners can usually finish within 30 minutes. Allow 5–15 minutes per exercise. Use hints, then the solution if stuck.

What after a correct answer?

After a correct answer, use "Next exercise". When you finish a category, continue on the learning roadmap.

Works on mobile?

Works on mobile browsers, but typing code is easier on a desktop.

Where are other exercises?

All exercises: /en/learn/ with category filters.

Key takeaway for "labelとinputの紐づけ"?

forとidを一致させると、ラベルクリックで入力欄にフォーカスします。 Hint: labelのforとinputのidを一致させる

Where does html-advanced fit?

Forms power sign-up, contact, and checkout. Proper label/input pairing is required in WCAG accessibility audits.

Step-by-step for "Label And Input"?

1. Read the guide and understand the goal of "Label And Input"
2. Review the HTML editor pane and start from the starter code
3. Open hints if stuck; compare your diff with the sample solution
4. Click Run and inspect preview/console output
5. Auto-check looks for output containing: for=, id=.
6. After success, continue with adjacent exercises in the same category

How to read the sample solution?

The solution uses HTML tags such as label, input. Check nesting and closing tags.

Explanation: forとidを一致させると、ラベルクリックで入力欄にフォーカスします。

Hint recap: labelのforとinputのidを一致させる

Something is not working?

Preview does not change after Run → Ensure you edited the HTML pane and clicked Run.
Looks correct but check fails → Auto-check looks for output containing: for=, id=. Look for typos, full-width spaces, or unclosed tags.
Console shows errors → Open DevTools Console and fix bracket/quote mismatches at the reported line.
Hard to type on mobile → Use landscape mode or continue on desktop—the same URL keeps progress in localStorage.

Career / interview angle?

Explain the techniques in "Label And Input" in your own words within 30 seconds Practice walking through each line of the sample solution on a whiteboard Be ready to discuss tags: label, input Mention responsive or accessibility trade-offs Prepare one alternative approach and why you chose this one

Can I change the starter code?

Yes—if it works. Understanding the starter first, then adding minimal diffs, speeds up learning.

What do the points mean?

15pt is a difficulty hint, not a score you must maximize.