How to add Link to an external stylesheet

Link Example.

index.html

Example: HTML

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" href="https://www.w3schools.com/tags/styles.css">
</head>
<body>

<h1>Hello World!</h1>

<h2>I am formatted with a linked style sheet.</h2>

<p>Me too!</p>

</body>
</html>

Output should be:

Type:	html
Category:	Web Tutorial
Sub Category:	HTML Attribute
Uploaded by:	Admin