<main></main><tag>innerHtml</tag>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
</body>
</html>block
inline-block
inline-block
<div></div> <span></span><h1></h1>
<h2></h2>
<h3></h3>
<h4></h4>
<h5></h5>
<h6></h6> <p></p> <img src="image-path"> <a href="#"></a><br><header></header><main></main><!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" type="text/css" href="style.css">
<script async defer src="script.js"></script>
</head>
<body>
<script src="script2.js"></script>
</body>
</html>