pug

i.pug

doctype html
html(lang="en")
 head
		meta(charset="UTF-8")
		meta(name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no")
		title Document
		link(rel="stylesheet", href="css/style.css")
	body
		header.header
			.container
				.header__flex
					.header__logo.logo
						.logo__title
					nav.header__nav
						ul
							li: a(href="")
							li: a(href="")
							li: a(href="")
		main.main
			.container
		footer.footer
			.container
		script(src="js/script.js")