ok. in the Main Options>Post Specifics>Post Title I entered 0.0 instead of just 0 and that makes the margin-bottom be 0em. (If you just put 0, it goes to the default 0.15em.) I also added
.page-title, .post-title {
padding-bottom: 0.0em;
}
to custom css field in Fonts & Custom. That moved the meta-info-wrap closer to the title too.
I still want to move it a bit closer– snug right underneath the post title, but can’t identify any other class with margins/padding to make that happen.