How do I add Unicode characters in HTML?
You can enter any Unicode character in an HTML file by taking its decimal numeric character reference and adding an ampersand and a hash at the front and a semi-colon at the end, for example — should display as an em dash (—). This is the method used in the Unicode test pages.
How do you show a less than (<) in an an HTML page?
To display a less than sign (<) we must write: < or < Advantage of using an entity name: An entity name is easy to remember.