Build Beautiful
Interfaces with CSS

A single-file proof-of-concept demonstrating modern CSS techniques — glassmorphism, animated gradients, responsive grids, and smooth transitions.

Everything You Need

Modern CSS features that make your designs stand out — no frameworks required.

🎨

CSS Custom Properties

Dynamic theming with variables that cascade through your entire design system.

📐

CSS Grid & Flexbox

Powerful two-dimensional layouts that adapt seamlessly to any screen size.

Glassmorphism

Frosted glass effects using backdrop-filter for that premium, modern feel.

🎬

Keyframe Animations

Smooth, performant animations that bring interfaces to life without JavaScript.

Bento Layout

Inspired by the latest design trends — a grid of rich, editorial cards.

Responsive by Default

Grid auto-fit and minmax ensure layouts work on every device.

Fluid Type

clamp() for typography

Dark Mode

Native dark palette

Smooth Scroll

CSS scroll-behavior

Zero Dependencies

Pure HTML & CSS — no frameworks, no build tools, no JavaScript required for visuals.

0
JavaScript Lines
1
Single File
Possibilities
60
FPS Animations
/* Glassmorphism Card */ .card { background: rgba(255,255,255,0.04); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; transition: all 0.35s cubic-bezier(.4,0,.2,1); } .card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0,0,0,.4); }

Write Less, Do More

Modern CSS is incredibly powerful. This entire page uses no CSS framework — just clean, semantic styles.

CSS Grid Flexbox Custom Props clamp() backdrop-filter @keyframes scroll-behavior gradient text

What People Say

Feedback from developers who've explored this demo.

★★★★★
"The glassmorphism effects are buttery smooth. Impressive that this is all in one file."
AK
Alex K.
Frontend Developer
★★★★★
"Clean code, responsive design, and gorgeous animations. This is how CSS demos should be."
SR
Sara R.
UI/UX Designer
★★★★★
"Love the bento grid layout and the animated gradient borders. Stealing these techniques!"
JM
Jordan M.
Full-Stack Engineer

Simple Pricing

Start free, upgrade when you're ready.

Starter

$0 / mo
For personal projects
  • 1 Project
  • Basic Components
  • Community Support

Team

$49 / mo
For growing teams
  • Everything in Pro
  • 5 Team Members
  • Shared Libraries
  • Analytics

Ready to Build Something Beautiful?

Copy this file, tweak the variables, and make it yours.