Change font size of ordered Items on Delivery Note

Hey guys,
I have read quite a few threads about changing the font size of things on the delivery note, but I have not been able to find the class that targets the items on the delivery note. Can someone please help me. Here is an image showing the text I need help with. Thanks

http://fabianoscuenca.com/capture.jpg

https://wordpress.org/plugins/woocommerce-delivery-notes/