<header class="main"></header>
<header class="main left"></header>
<header id="featured"></header>
<header id="featured" class="main left"></header>
<header data-kacsa="majom"></header>
<header data-teve></header>
<header><header> element.</header>Class, Id other attributes
<!doctype html>
<html lang="en">
<head>
<title>How She Got There</title>
<meta charset="utf-8">
<link href="https://fonts.googleapis.com/css?family=Lato:400" rel="stylesheet">
<link rel="stylesheet" href="style/style.css">
</head>
<body>
...
</body>
</html>h1 {
color: blue;
background-color: yellow;
border: 1px solid black;
}
p {
color: red;
}
<meta charset="utf-8">
<meta property="og:image" content="/logo.jpg" />
<meta property="og:image" content="/logo.jpg" />
<meta http-equiv="refresh" content="30">
<meta name="keywords" content="HTML, CSS, JavaScript">
<meta name="description" content="Best course ever!">
<meta name="author" content="Kovats Bela">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="googlebot" content="noindex" />