include external css code example
Example 1: add stylesheet html
<link rel="stylesheet" type="text/css" href="style.css">
Example 2: external css
<html>
<head>
<link rel="stylesheet" type="text/css" href="mystyle.css"></link>
</head>
<body>
Example 3: external style sheet
<link rel="stylesheet" type="text/css" href="mystyle.css">