Change text decoration

Hello, sorry if you think this is a kinda stupid question, but I have no knowledge of php, js,...

Anyway, what I would like to change is the italy text decoration of the event name. And I've been searching in the php & js files to find the place where I should edit this but I can't find it anywhere.

So if someone knows what I should change in wich file, and where to get lost of the italy text decoration, please post it :)

And once again, sorry if I ask stupid things :p

Greetz