Sometime you may need to use a special character in an HTML document, an accent or diacritical mark. The ones that are recognized as known as ISO These special characters are marked in HTML as:
where xxxx is the code name for the special character, and with #xxxx is the decimal equivalent of the name. Below is a large table listing all of the HTML code used for special chracters. If you can't see them, then your browser/system doesn't accept the ISO character set. Notice in the list,that   appear not to have a result, well it's result is a white space. There are also © and ® symbols available.
It is of importance that each &xxx tag ends with a semi colon ; as the latest browsers understand this method.