Nowadays twitter bootstrap theme has become famous among Drupal world due to its flexibility for responsive websites. It is very easy to apply responsive css to the web page by adding appropriate bootstrap classes. If you are new to the twitter bootstrap theme, see here https://getbootstrap.com/css/ for more details about classes. Is it easy to add class to drupal site pages ? If yes, what to do to add class to panel title and image tags ? Lets come to the heart of the topic.
Adding class to panel title