How to increase the font size in the title?

Hi
I have successfully installed meteor slider and used the example css Josh has provided on his website to add a title and semi-transparent background to each slide. It works great. Thank you, Josh!

However, is it possible to:
1) Increase the title font size (e.g. font-size:16px) and where would I place the css code in order to do this?

2) Place the title and semi-transparent background elsewhere on the slide other than the bottom, e.g. on the top?

Thanks

https://www.ads-software.com/extend/plugins/meteor-slides/