Really Simple Calendar is responsive and it can be adjusted automatically to the width of your page.
Basic Calendar Features
Really simple calendar enables you to set events and categories from the back end of your Joomla site. Then you have the option to display it as a menu item or you can display it as a module in any position that you want. Other features include styling of the calendar, such as changing the colors.
Espa plugin is really impressive for its potential and its easy handling.
Cons: I was unable to make the events will there be in the same window (taking set in that there will be options in the same window).
For the rest minimalist congratulations on this excellent work.
Thank you very much for your time.