There are several "special" characters commonly used when dealing with Mac systems. The most obvious is the "cloverleaf" character, "⌘", which is used for keyboard shortcuts (such as "⌘Q" to quit an application.
This is a list of them, along with the codes needed to use them in web pages (like I did above.)
Image | SGML Entity | Notes | ||
Rendered | Hex | Decimal | ||
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⇧ | ⇧ | ⇧ | Shift |
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⇪ | ⇪ | ⇫ | Caps Lock |
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⌘ | ⌘ | ⌘ | Command (aka "Cloverleaf", or "Open Apple") |
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⌚ | ⌚ | ⌚ | Watch |
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⌥ | ⌥ | ⌥ | Option |
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⌦ | ⌦ | ⌦ | Delete (delete to the right) |
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⌫ | ⌫ | ⌫ | Backspace (delete to the left) |
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⎋ | ⎋ | ⎋ | Power |
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⏏ | ⏏ | ⏏ | Eject |
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▶ | ▶ | ▶ | Disclosure triangle, closed, large |
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▸ | ▸ | ▸ | Disclosure triangle, closed, small |
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▼ | ▼ | ▼ | Disclosure triangle, open, large |
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▾ | ▾ | ▾ | Disclosure triangle, open, small |
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|  |  | Apple (closed apple) |
If you know of any which I've missed, which logically belong here, please let me know and I'll add them.