In a headline, sections marked as code
use a font that is too small compared to the font of the headline.
Actually, the font size for code sections in title seems to be just the same as used for code sections in bold text:
Headline 1 with code
section
Headline 2 with code
section
Headline 3 with code
section
Bold line with code
section
Plain line with code
section
I compared to askubuntu and found that the font adapts to the header font there.