Some characters are reserved in html. For example, you cannot use the greater than or less than signs within your text because the browser could mistake them for markup.

Commonly Used Character Entities

Note: Entity names are case sensitive!

1.  non- breaking space(  or  )
2. less than (< or <)
3. copyright (© or ©) etc

where one is entity name and other one entity Number

Note: Browser may not support all entity names while the support for entity numbers is very good.