What characters can be used for up/down triangle (arrow without stem) for display in HTML?

I'm looking for a HTML or ASCII character which is a triangle pointing up or down so that I can use it as a toggle switch.
I found ↑ (↑), and ↓ (↓) - but those have a narrow stem. I'm looking just for the HTML arrow "head".


Answer:

Unicode arrows heads:
  • ▲ - U+25B2 BLACK UP-POINTING TRIANGLE
  • ▼ - U+25BC BLACK DOWN-POINTING TRIANGLE
  • ▴ - U+25B4 SMALL BLACK UP-POINTING TRIANGLE
  • ▾ - U+25BE SMALL BLACK DOWN-POINTING TRIANGLE
For ▲ and ▼ use ▲ and ▼ respectively if you cannot include Unicode characters directly (use UTF-8!).
Note that the font support for the smaller versions is not as good. Better to use the large versions in smaller font.
More Unicode arrows are at:
Lastly, these arrows are not ASCII, including ↑ and ↓: they are Unicode.


http://stackoverflow.com/questions/2701192/what-characters-can-be-used-for-up-down-triangle-arrow-without-stem-for-displa