Introduction

Many developers are familiar with basic HTML tags like

,

, and .
However, advanced HTML tags can improve accessibility, SEO, and performance.
This article covers advanced tags and new HTML5 tags that every developer should know.

1. Advanced HTML Tags You Should Use

1.1

and (Collapsible Content)

  • Used to create expandable sections.
  • Great for FAQs, accordions, and extra information. 
Click to see more details
  This is additional content that is hidden by default.

1.2

(Native Modals & Popups)

  • Creates a built-in modal popup without JavaScript. 
This is a popup!
  Close

Open Dialog

1.3 and (Displaying Progress & Measurements)

  • : Shows progress (e.g., file upload status).
  • : Represents a range or measurement.

1.4 (Responsive Images with Multiple Sources)

  • Loads different images based on screen size or format support.

1.5 (Hidden HTML for Dynamic Content)

  • Used for cloning elements dynamically with JavaScript.

2. New & Modern HTML Tags from HTML5

2.1

,
, and (Semantic Layout)

  • Improves SEO and accessibility. 
Blog Title
  Content goes here...

Related Links

2.2

, ,
, and (Structural Elements)

  • Enhances document readability and structure. 
Website Title
  
    Home
    About

2.3 (Date & Time Formatting)

  • Used to specify dates and times. 
Published on March 10, 2025

2.4 (Highlight Important Text)

Don't forget to submit your assignment by tomorrow!

2.5 (Word Break Opportunity)

  • Helps break long words properly. 
Visit our website: www.example.com

3. Accessibility & Performance Enhancements with HTML

3.1 (Abbreviations with Tooltips)

HTML is a markup language.

3.2 (Bidirectional Text for Multilingual Sites)

Username: علي

3.3 (Enhanced Input Fields with Suggestions)

4. Best Practices & When to Use These Tags

  • Use semantic HTML for SEO and accessibility.

  • Prefer

    over custom JavaScript popups for better performance.

  • Optimize to load images efficiently.

  • Combine

    and for user-friendly FAQs.

Conclusion

Advanced and new HTML tags improve user experience, SEO, and accessibility.
Try these tags in your next project to enhance performance.
What are your favorite HTML5 tags? Share in the comments!