<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <form class="form-horizontal" method="post"> <fieldset> <!-- Form Name --> <legend>Login</legend> <!-- Text input--> <div class="form-group"> <label class="col-md-4 control-label" for="textinput_username">Usuario</label> <div class="col-md-4"> <input id="textinput_username" name="textinput_username" type="text" placeholder="Ingrese su username" class="form-control input-md" required=""> </div> </div> <!-- Password input--> <div class="form-group"> <label class="col-md-4 control-label" for="passwordinput_password">Password</label> <div class="col-md-4"> <input id="passwordinput_password" name="passwordinput_password" type="password" placeholder="Ingrese su contraseña" class="form-control input-md" required=""> </div> </div> <!-- Button --> <div class="form-group"> <label class="col-md-4 control-label" for="singlebutton_login"></label> <div class="col-md-4"> <button id="singlebutton_login" name="singlebutton_login" class="btn btn-primary">Login</button> </div> </div> </fieldset> </form>