Check out example codes for "how to use link tag in html". It will help you in understanding the concepts better.
Code Example 1
<a href="url">link text</a>
Code Example 2
<head>
<link rel="stylesheet" type="text/css" href="theme.css">
</head>
Code Example 3
<!DOCTYPE html>
<html>
<head>
<title>HTML link Tag</title>
<link rel = "stylesheet" href = "stylenew.css">
</head>
<body>
<div id = "contentinfo">
<p>Welcome to our website. We provide tutorials on various subjects.</p>
</div>
</body>
</html>
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