HTML5 + CSS3
Single‑file, no JS

Modern HTML5 & CSS3 — No JS

A big, production‑grade single file that showcases semantic structure, responsive layout, forms, tables, FAQ, media, tabs, and CSS‑only interactions.

Explore Features Contact Form

Fluid type, container queries, dark/light theme, print styles, and more.

Feature Overview

Semantic HTML

Header, nav, main, section, article, aside, footer—clean structure for accessibility and SEO.

Responsive Layout

Grid + Flex + container queries keep components adaptive from mobile to desktop.

CSS‑Only UI

Hamburger nav, theme switch, tabs, and a snap‑strip—no JavaScript required.

Forms & Tables

Native validation, accessible fields, zebra tables, progress & meter elements.

Media Ready

Picture, audio, and video tags with graceful fallbacks and print‑safe styles.

Theming & Tokens

Custom properties (CSS variables), fluid type via clamp(), and focus visibility.

Article Title

By Author ·

This is a callout block highlighting a key idea. It uses a left rule and muted color.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer ac mi eget justo tristique efficitur. Vestibulum at iaculis magna. Suspendisse potenti. Fusce blandit dui nec mauris commodo, at tempor elit varius.

Abstract placeholder
Figure 1. Replace the inline SVG with your image.

Morbi vel sapien sed urna aliquam interdum. Nam a velit in orci pulvinar pharetra. Nullam dictum sem in risus condimentum, et euismod nibh aliquet. Maecenas sodales risus ac neque convallis bibendum.

Tab One

Content for the first tab, revealed via :target.

Tab Two

Content for the second tab. Works without JavaScript.

Tab Three

Content for the third tab. Keyboard accessible.

Code Sample

<section class="features">
  <article class="card">Feature…</article>
</section>

Useful Links

Data Table

Item Status Progress Score
Alpha Active 72% 82
Beta Pending 40% 55
Gamma OK 95% 96

Table with native <progress> and <meter> elements.

Contact Form (HTML only)

This is a static form. Hook it to your backend as needed.

Submitting will POST to # (demo only).

Inputs

Frequently Asked Questions

Does this page use JavaScript?

No. All interactions are done with HTML and CSS only.

How do I switch themes?

Use the Theme toggle in the header. It’s a CSS checkbox that overrides color tokens.

Can I replace the visuals?

Yes—swap the inline SVG placeholders or background gradients with your own images.

Media

Audio
Video