1. I'm trying to find out how to control the HEIGHT of my logo. (I see how to control the width, but the height appears to be limited?)

2. And also how to control the height of my header. We have a single-page site so there's no menu for navigation. Just want the top header area to take up less of the page.

Thanks. 

I found this article, but the CSS doesn't seem to affect anything. And my logo is nowhere near as large as the example in the post.

https://codexthemes.ticksy.com//ticket/2527601/

I thought it might help clarify if I attached a screenshot.

Thanks. I thought SVG files worked like other vectors where a plain background with no objects doesn't affect the file dimensions. Obviously that's wrong!