Use button classes on an <a>, <button>, or <input>element.
                                    
                                        Use the .btn-outline-*classes to create bordered buttons.
                                    
                                        Add roundedto buttons to get large rounded corners.
                                    
                                        Use the .btn-outline-*and .btn-roundedclasses together to quickly create bordered buttons with large rounded corners.
                                    
                                        Add .btn-lgor .btn-smclasses for additional button sizes.
                                    
Add icons to any button or even use Icon-only buttons.
                                        Create block level buttons, by adding add .btn-block.
                                    
                                        Create a group of buttons by wrapping with .btn-group.
                                    
                                        Add the disabledattribute to disable buttons.