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HTML <details> Tag: Definition, Syntax, and Examples

What is HTML <details> Tag?

The HTML details tag is used to create an expandable and collapsible content section on a webpage. It allows users to click and reveal hidden information, making the page more organized and user-friendly. This feature is commonly used for FAQs, additional notes, instructions, and expandable sections that users can control.

The details tag enhances user experience by allowing visitors to view content only when needed. It helps reduce clutter on a webpage and improves readability. The details tag is placed in the body section and usually contains a summary tag that defines the title of the collapsible section.

Syntax of the HTML <details> Tag

plaintext
<details>
  <summary>Title of the section</summary>
  Content that will be shown when expanded.
</details>

The summary acts as the clickable title. The text inside details becomes visible only when the user clicks on the summary.

Examples of HTML <details> Tag

Example 1: Basic HTML Details Tag

plaintext
<!DOCTYPE html>
<html lang="en">
<body>

  <details>
    <summary>About Scholar247</summary>
    Welcome to Scholar247, a platform that provides educational tutorials and helpful learning guides.
  </details>

</body>
</html>

In this example, clicking on “About Scholar247” reveals a short description. This is a basic and user-friendly demonstration of how the details tag works.

Example 2: SEO Optimized Details Tag

plaintext
<!DOCTYPE html>
<html lang="en">
<body>

  <details>
    <summary>Why Choose Scholar247 for Learning?</summary>
    Scholar247 offers well-structured study guides, SEO-friendly educational content, and easy-to-understand tutorials for students and beginners in web development.
  </details>

</body>
</html>

This example uses relevant keywords such as study guides, SEO-friendly content, and web development, which helps improve search engine relevance and provides valuable information to visitors.

Attributes of the HTML <details> Tag

The details tag has very limited attributes, but the main one is:

• open: When used, it keeps the details section expanded by default when the page loads.

Example:

plaintext
<details open>
  <summary>Always Open</summary>
  This section is visible by default.
</details>

Best Practices for HTML <details> Tag

• Use a clear and meaningful summary text so users understand what content will expand.
• Use the details tag for FAQs, help sections, notes, and additional info to improve readability.
• Avoid placing large or critical content inside details since it stays hidden by default.
• Use relevant keywords inside the expanded text for better SEO value.
• Do not overuse the details tag, as too many collapsible sections may reduce user engagement.

FAQs About HTML <details> Tag

Q1: What is the purpose of the HTML details tag?

The details tag is used to show and hide content in a collapsible section, improving page organization and user experience.

Q2: Is the details tag good for SEO?

Yes, it is SEO-friendly. Search engines can read the hidden content inside the details tag, and it also improves user experience by keeping pages clean and scannable.

Q3: Can the details tag be used without the summary tag?

Yes, it can work without summary, but users will not have a clickable label. It is recommended to always include one.

Q4: Can I style the details tag with CSS?

Yes, you can customize the appearance of both details and summary using CSS to match your website design.

Q5: Does the details tag require JavaScript?

No, the details tag works automatically without JavaScript, making it a simple and lightweight option for collapsible content.

HTML

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