problems with underlines

Hello, I’m having problems with my title underlines. My site has very few graphical elements so I’d like to get them right.

I have red underlines on both the blog title and the post title. On the blog title the underline is close up under the text. On the post title the underline hangs down below the g’s and y’s. I would like the post titles to be like the blog title. I’ve studied this for a long time and I’m stumped. Please help.

The blog: https://www.longsufferingtrad.com

The style sheet: https://www.longsufferingtrad.com/wp-content/themes/blogtxt/style.css

Thanks a million.