Base-Bootstrap-SENAC

<!DOCTYPE html>
<html lang="pt-br">
  <head>
    <!-- Meta tags Obrigatórias -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css">

    <title>Modelo Inicial</title>
  </head>
  <body>
    <h1>Olá, mundo!</h1>


    <!-- JavaScript (Opcional) -->
    <!-- jQuery primeiro, depois Popper.js, depois Bootstrap JS -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.slim.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/js/bootstrap.min.js"></script>
  </body>
</html>