Option to reduce font size

[quarkQuark]

Thanks for the work on this app: it's really helpful! I'd find it very useful to be able to reduce the font size and the gaps between lines so that I can see more lyrics at a time. I presume that this is somewhere in css/lyrics.css, but there are a lot of lines in that file which seem to have something to do with font size, and I'm not particularly familiar with css. Is anyone able to point me in the direction of what to change? This might be helpful to have in the README too.

[khanhas]

Use devtool to know what are lyrics class name and their CSS. Find and edit lyrics.css accordingly.