Input!, Press tab or ctl + e, to generate the following infrastructure.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
</body>
</html>
Extended command:
html:! 5 or to generate structures HTML5
html: xt generate HTML4 Transitional
html: 4s generate HTML4 Strict