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.