CSSMargins.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Margins</title>
    <link rel="stylesheet" href="margins.css">
</head>
<body>
    <div>
    <h1 id="Margin">this is heading</h1>
    <p class="dare">this is a  Paragraph</p>
    <header id="nav">CSS Margins</header>
    </div>
</body>
</html>