Keys.css – a simple stylesheet to render beautiful keyboard-style elements as a great way of showing hotkeys.
Keys.css is compatible with all modern browsers, uses CSS3 properties, and degrades gracefully in older browsers. Adapts to any font-size and is easy to use.
The stylesheet has 2 classes, for light and dark keys (dark style is the default) for good visibility on every background. You can also create your own variations.