link in html w3schools code example
Example 1: hyperlink html
<a href="url">link text</a>
Example 2: html link tag
<head>
<link rel="stylesheet" type="text/css" href="theme.css">
</head>
<a href="url">link text</a>
<head>
<link rel="stylesheet" type="text/css" href="theme.css">
</head>