Deejay : Navigation Bar, Events

Hello,
I use the Deejay theme and I can’t make 2 things as they exist on the following site:
https://www.tonnerre-de-jazz.com/
1°) How to make the navigation bar zoom and unzoom when the mouse passes over it.
2°) In the “concert” section.
https://www.tonnerre-de-jazz.com/concerts/
it seems that the extension “Events manager” is used but I can’t get the same thing.
Could you help me to do the same thing?
Thank you very much for your help.

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