An "entity" is a fancy term for a symbol. Several symbols, such as copyright, trademark, or foreign cash symbols, exist on your standard keyboard, so you need to display these characters using a different method.
There are three parts to every entity.
Each begins with a ampersand - &
Then the entities name - copy
And finally a semicolon - ;
Combine © to make - © - Copyright symbol.
Expect complications if you forget to include all three parts of an entity.
Regardless of how many spaces you place between words, your web browser will only render a single space. To get around this, use the non-breaking space character entity.
<p>Everything that goes up, must come
down!</p>
Everything that goes up, must come down!
In HTML, we use less than and greater than characters to create tags, so to use them on your website you will need entities.
<p> Less than - < <br /> Greater than - > <br /> Body tag - <body> </p>
Less than - <
Greater than - >
Body tag - <body>