Including constructs such as “⊕” in an html file produces a variety of special symbols such as “⊕” in the example above.
Utf-8 is a more compact form that may be easier to use depending on your web tools.
With these links to 100 files each with 100 such constructs
you can see how your browser displays these characters.
The character is shaded unless its code is specified in
Character
entity references in HTML 4.
This page presents
much of the same information in another form.
Perhaps these are the most official and complete.
I don’t know any browsers that come near to implementing a large fraction of these however.
Internet Explorer 5.1 for Mac OS X, and Netscape 6.2.1 for Mac OS X agree on
just about all of these official codes. “ϖ”, “℘”, “ℜ”
are the only exceptions that I have noticed.
There are many other codes for which the two browsers agree.
They come in clumps and someone clearly hopes they will become standard.
There are as well many scattered fragments where the two do not agree.
Usually the two will agree or one will display the question mark.
- Main Official Clumps
-
Greek,
Cyrillic,
Punctuation,
Exotic letters,
Arrows and aleph,
Math,
etc.,
etc.,
Check out this indigenous Chinese Yi syllabary.
- Unofficial common clumps; IE & Netscape mostly agree
-
Misc Tech
⑭ ⒲,
Lines and corners,
Geometric forms,
Cards, Music,
Units
And even Chinese,
Georgian,
Hebrew,
Japanese,
Korean,
See the deprecated Symbol characters too.
Netscape 6 is somewhat deficient in these.
Here are hexidecimal character entity references which access the same glyphs but follow the hexidecimal grain of the allocation of code blocks.
If you type or paste an exotic character into the box, it will take you to the code page.
Note that the end of the URLs to these pages are hexidecimal code block numbers which you can generate by editing the URL in the address bar.
math,
Greek,
Cyrillic,
Japanese,
Chinese,
bad Phi (φ)