HTML common special characters: as long as you know HTML tags, you will know the use of special characters. Web page special symbols have many practical aspects, such as copyright symbols: © Trademark registration symbol: ® Turn off the symbol: × (I often use this). The font should be set larger. Now let's take a look at the special symbols in the web page.

HTML 4.01 supports the ISO 8859-1 (Latin-1) character set. The lower part of ISO-8859-1 (code from 1 to 127) is the original 7-bit ASCII. The higher parts of ISO-8859-1 (codes from 160 to 255) all have entity names. Most of these symbols can be used without entity reference, but entity names or entity numbers provide an expression method for symbols that are not easy to type through the keyboard.   notes : The entity name is case sensitive.