setMaxHeight()
                
                setMaxHeight(mixed  $height) : \Charcoal\Admin\Ui\ImageDisplay
                Set the maximum height to display the image.
                If integer specified, 'px' will be append to it.
                                    Parameters
                    
                                                    
                                | mixed | $height | A CSS value; a length, percentage or calc(). | 
                                            
                
                
                                    Returns
                    \Charcoal\Admin\Ui\ImageDisplay
                                            — Chainable