Use the class .btn-group to create a button group. You can try to run the following code to implement the btn-group class:ExampleLive Demo           Bootstrap Example                                 The following are the buttons:                One          Two          

The btn-group-vertical class makes a set of buttons appear vertically stacked rather than horizontally.You can try to run the following code to work with a vertical button groupExampleLive Demo           Bootstrap Example                                          BCA          B.Tech                                      Masters                span class = "caret">                                        MCA                MBA                M.Tech                M.COM                                

Use the .img-thumbnail Bootstrap class to add thumbnail to images.You can try to run the following code to implement the img-thumbnail class:Example Live Demo           Bootstrap Images                                 Styling images with Bootstrap       Original Image             Thumbnail Image          

To learn the usage of .btn-group-* class, you can try to run the following code:ExampleLive Demo           Bootstrap Example                                          One          Two                      Three          Four                      Five          Six          

Use the img-circle Bootstrap class to style your image and make it completely round.You can try to run the following code to implement the img-circle classExampleLive Demo           Bootstrap Images                                 Styling images with Bootstrap       Original Image             Image with Rounded Corners          

Use the class .btn-group to create a button group.You can try to run the following code to implement the btn-group class −ExampleLive Demo           Bootstrap Example                                 The following are the buttons:                One          Two          

To add a header to label sections in the drop-down menu, use the dropdown-header class in Bootstrap:ExampleLive Demo           Bootstrap Example                                                       Diet                                             Vegetables                            Potato                                        Tomato                                                           Brocolli                                         Fruits                                               Apple                                                                           Kiwi                                                

To set disabled state, use the disabled class.You can try to run the following code for the disabled state of a button −ExampleLive Demo           Bootstrap Example                                 The following are some buttons:                Default Button                      Disabled Button          

Use carets to indicate dropdown functionality and direction. To get this functionality use the class caret with a element.You can try to run the following code to implement caret Bootstrap classExampleLive Demo           Bootstrap Example                                 Caret Example    

Add a header to label sections of actions in any drop-down menu by using the class dropdown-header.You can try to run the following code to implement the dropdown-header Bootstrap classExampleLive Demo           Bootstrap Example                                                       Diet                                             Vegetables                            Potato                                        Tomato                                                           Brocolli                                         Fruits                                               Apple                                                                           Kiwi