CSS in HTML
<style type="text/css">
h1 {
color: purple;
}
</style>
#External stylesheet
<head>
...
<link rel="stylesheet" href="style.css"/>
</head>
Comments
<style type="text/css">
h1 {
color: purple;
}
</style>
<head>
...
<link rel="stylesheet" href="style.css"/>
</head>