Search... Gett ingstarted l n t r o duction Downlo ad Contents B r owsers& devices JavaScrip t O ptions Build tools W ebpack Acces i b s i l i t y Starter template Be sure to have your pages set up with the latest design and development standards. That means using an HTMLS d oc type and including a viewport meta tag for proper resp onsive behaviors. Put it all together and your pages should look like this: <!DOCTYPE html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-s··> <meta name="vieo,port" content="oidth=device-ioidth, initial-scal=e1, shrink-to-fit=no"> Layout Content Components Utilities Extend Migration <!-- Bootstrap ess --> <link rel="stylesheet"href="https/:/maxcdn.bootstarpcdn.com/bootstrap/4.0.0- beta/css/bootstrap.min.css··integrit </head> <body> <h1>Hello, tvorld!</h1> <!-- Optional JavaScript --> <!-- jQueryfirst, then Popper.js, then Bootstrap JS --> <scritpsrc="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtikvYIK3UENzmM7KCkRr/rE9/ <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js" integrity="sha384-b/U6ypi <scritpsrc="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js" integrity="sha384-h0AbiXch </body> </html> ◄