Modern HTML5 Features — Complete Guide
Modern HTML5 Features — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of HTML Tutorial on Toolliyo Academy.
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HTML Tutorial · Lesson 60 of 100
Modern HTML5 Features
Basics ✓ → Forms & semantics ✓ → APIs & performance → Projects
APIs & performance · 3 — HTML5, CSS/JS, security · ~10 min · HTML — HTML5 APIs & Advanced Features
What is this?
HTML5 adds semantic tags, native media, form types, and APIs without plugins.
Why should you care?
MarkupVerse builds on one modern baseline instead of XHTML-era workarounds.
See it live — copy this example
Save as demo.html and open in your browser, or use Run Example below.
<article>
<header><h1>MarkupVerse Health</h1></header>
<video controls width="320" poster="visit-thumb.jpg">
<source src="telehealth-intro.webm" type="video/webm">
<source src="telehealth-intro.mp4" type="video/mp4">
</video>
<details>
<summary>What is covered?</summary>
<p>Virtual visits and lab orders.</p>
</details>
<meter min="0" max="100" value="72" title="Plan usage">72% used</meter>
</article>Run Example »
Edit the code below and click Run to see the result in Toolliyo’s live editor.
What happened?
- Pick semantic tags first.
- details/summary for collapsible FAQ.
- meter for bounded gauges — not progress.
Practice next
- Add video with two sources.
- Wrap FAQ in details.
- Use meter for usage.
- Add picture for responsive hero.
- Replace meter with progress for upload.
Remember
Semantic HTML5 tags. Native media. Right widget per job.
MarkupVerse health article
Portal embeds intro video + FAQ.
Outcome: Accessible structure without custom widgets.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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