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I used some good looking ones from http://dev.w3.org/html5/html-author/charref on my site but I just noticed that they don't show on mobile browsers of Android.

For example:

  • ⪦
  • ⪢

Which special characters and HTML Character Codes (entities) have crossbrowser/crossplatform support?

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Which ones specifically? Is an appropriate font installed? Not all entities are in all fonts, IIRC. –  Brock Adams Jul 9 at 9:28
    
these ones, for instance: ⪦ ⪢ –  CamSpy Jul 9 at 9:37
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@CamSpy FWIW those two chars don't show for me in Google Chrome Desktop (Windows) either, although they do in Firefox (Windows) - I've added these to your question so others can easily check. –  w3d Jul 9 at 10:07
    
@w3d OK, thanks –  CamSpy Jul 9 at 11:04

1 Answer 1

up vote 3 down vote accepted

The named character references added in HTML5 do not work cross-browser, though the support is relatively widespread now. Generally, there is hardly ever any reason to use them (as opposite to references defined in HTML 4.1, which are well supported).

Quite independently of this, the characters themselves (no matter whether entered as such, as named references, or as numeric references) need to exist in some font in the system and the browser needs to know how to find them. There is no list of characters with crossbrowser/crossplatform support, since each system has its own fonts and many browsers have specialities in using fonts.

To make characters appear in (almost) all systems, you would need to use web fonts (downloadable fonts), which come with problems of their own. See my Guide to using special characters in HTML.

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