Web Design in a Nutshell, 3rd Edition

Nonstandard Entities (‚-Ÿ)

The character references numbered 130 through 159 are not defined in HTML and therefore are invalid characters that should be avoided.

Some nonstandard numerical entities in this range are supported by browsers (such as — for an em dash), however, they all have standard equivalents listed in the “General Punctuation.” section of this appendix. If you need an em dash, use — or — instead.