Lumen

Demo · v1.0

Ship delightful pages, faster.

Lumen is a lightweight starter for small marketing pages — zero build step, responsive by default, and friendly on every screen.

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0 kb
Build tools
<5 kb
CSS payload
100%
Responsive

Built for simplicity

Everything you need for a crisp landing page — nothing you don't.

  • Fast by default

    Plain HTML and CSS mean instant loads and no runtime surprises.

  • Mobile-first

    Flexible grid, fluid typography, and sensible breakpoints out of the box.

  • Themeable

    Design tokens live in CSS variables so you can rebrand in minutes.

  • Accessible

    Semantic landmarks, focus styles, and sufficient contrast baked in.

About this demo

This page is a tiny showcase of what you can accomplish with modern HTML and CSS alone. It's intentionally small — one page, three sections, one stylesheet, and a sprinkle of JavaScript to brighten up the UI.

Fork it, tweak the tokens, and make it yours.