HTML CSS examples for Bootstrap Class List:btn-block
.btn-block - Creates a block level button that spans the entire width of its parent element
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.6/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script> </head><!-- w w w . j a v a 2s . co m--> <body> <div class="container"> <h2>Block Level Buttons</h2> <button type="button" class="btn btn-primary btn-block">Button 1</button> <button type="button" class="btn btn-default btn-block">Button 2</button> <h2>Large Block Level Buttons</h2> <button type="button" class="btn btn-primary btn-lg btn-block">Button 1</button> <button type="button" class="btn btn-default btn-lg btn-block">Button 2</button> <h2>Small Block Level Buttons</h2> <button type="button" class="btn btn-primary btn-sm btn-block">Button 1</button> <button type="button" class="btn btn-default btn-sm btn-block">Button 2</button> </div> </body> </html>