The Post header tab allows you to change the header type and spacing.
1. Log into your Blogger dashboard.
2. Go to Theme > Customize > Advanced > Post header.
3. Make necessary changes > Save.
Change the post header the entry from the 7 options:
Post header type:
Standard: Value 0px to enable.
Large: Value 1px to enable.
Wide: Value 2px to enable.
Full: Value 3px to enable.
Fullscreen: Value 4px to enable.
Image top: Value 5px to enable.
Image bottom: Value 6px to enable.
Post header top padding: Change the top space of the header.