Border Radius & Block Title Height

In DT 6.5, could you help me to figure out why not all blocks are affected with border radius? Also, I could not figure out how to narrow down the height for all block titles. I played with directory theme style.css and I liked the way it looks so far, but border radius is an issue. Here’s attachment for you to see and get an idea what it is happening in my testing site before switched over to production site.

Is there something I’ve missed in CSS files? In Design Setup, Custom Meta Data tab?

I would recommend to add a tab in Design Setup that can administrate all of measurements on contents, blocks, titles, menu, etc…

Let me know. Thank you.