XP.css – Windows XP CSS file and framework for building GUIs

In plain words

XP.css is a CSS framework that recreates the visual style of Windows XP for building graphical user interfaces on the web. Launched in 2020, it provides developers with stylesheets and components to design applications with classic Windows XP aesthetics. The framework allows creators to build functional web interfaces that emulate the operating system's familiar look and feel, appealing to developers interested in retro design or nostalgic user experiences.

written from the facts on this page · September 2026

From the sources

A design system for building faithful recreations of old UIs. XP.css is an extention of 98.css. A CSS library for building interfaces that look like old UIs. See XP.css on GitHub See 98.css on GitHub This library relies on the usage of semantic HTML . To make a button, you'll need to use a <button> . Input elements require labels. Icon buttons rely on aria-label . This page will guide you through that process, but accessibility is a primary goal of this project. You can override many of the styles of your elements while maintaining the appearance provided by this library. Need more padding on your buttons? Go for it. Need to add some color to your input labels? Be our guest. This library…from botoxparty.github.io

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