sample calci

I’m looking to have a lightweight, browser-based calculator that handles the four basic operations—addition, subtraction, multiplication and division—nothing more, nothing less. The focus is on speed, clarity and a clean look, so a simple, minimalist interface is essential. Think plain HTML5, CSS3 and a touch of JavaScript (or a similarly lean stack) that loads instantly on any modern desktop or mobile browser. No external libraries are required unless they make the code cleaner and remain equally lightweight.

Your code should be well-commented and easy for me to drop onto a standard web host without extra build steps. Accessibility and cross-browser consistency matter to me, so please keep the markup semantic and the styling responsive.

Deliverables
• A single-page HTML/CSS/JS solution implementing the four basic functions
• Minimalist UI that scales gracefully from phone to desktop
• Clear installation and usage notes (readme or inline comments)

I’ll review by running it locally and checking each operation for correct results and smooth interaction. If everything is intuitive at first glance and the calculations are precise, we’re good to go.