In post / page title spacing, you get options to set spacing for post / page title area. You can find the setting under Appearance Customize Spacing Post / Page Title

Below are the options available in post / page title spacing.

 

Title Section Padding

It will add padding to the post / page title area from all sides.

 

Title Margin

It will add margin to the post / page title from top and bottom.

 

Breadcrumbs Margin

It will add margin to the post / page breadcrumbs from top and bottom.