internal css and external css w3 code example
Example 1: external css
<html>
<head>
<link rel="stylesheet" type="text/css" href="mystyle.css"></link>
</head>
<body>
Example 2: external css
<html>
<head>
<link rel="stylesheet" type="css/text" href="msa.css"></link>
</head>
<body>