Editar o código:
ver o resultado »
Tente você mesmo - ©
w3ii.com
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="/lib/bootstrap.min.css"> <script src="/lib/jquery-1.12.2.min.js"></script> <script src="/lib/bootstrap.min.js"></script> <style> .btn-default { background: #000; color: #fff; } .btn-default:hover { background: #fff; color: #000; } </style> </head> <body> <div class="container"> <h2>Customized Buttons</h2> <p>Black button:</p> <button type="button" class="btn btn-default">Button</button> </div> </body> </html>