Calculator

Simple Calculator
Simple Calculator
Basic arithmetic — bright & dark
0
0
Keyboard: numbers, + – * /, Enter for =, Backspace for delete

I created a single-file HTML/CSS calculator in the canvas titled Simple Calculator — single-file HTML/CSS.

What’s included:

  • Responsive calculator UI (0–9, ., +, −, ×, ÷, clear, delete, equals)
  • Bright & dark theme toggle with localStorage persistence and system-preference fallback
  • Keyboard support (numbers, operators, Enter =, Backspace delete)
  • Accessible labels and focus styles
  • Simple, safe evaluation logic and graceful error display

Open the canvas to copy or edit the full file. Want me to:

  • add memory buttons (M+, M-, MR),
  • export this as a downloadable HTML file,
  • convert to a React component,
    or make any visual tweaks (larger buttons, custom colors)?