Problems with unicode icons

[FardeemMunir]

Recently I was trying to make traingles with shadows in css. There is a [css-tricks article](https://css-tricks.com/triangle-with-shadow/) on it that uses unicode icons for the triangle. It says that there might be problem with unicode icons in some browsers. I would like to what would be those problems

[Paulie_D]

This is primarily a font problem.

If the fonts listed in your CSS do not cover some character, then different browsers will use fallback fonts differently. The cure is to try and find a list of fonts that probably covers all the characters you use. The difficulty of doing this greatly depends on the characters you use.

http://www.cs.tut.fi/~jkorpela/html/characters.html

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