Title
From your Shopify admin, go to Online Store -> Themes.
Find the theme that you want to edit, and then click Customize.
Choose Products from the dropdown window -> Choose Default product.
From the side menu, select Product information. Click + Add block and select "Title" block, or click the Search bar to enter a search term.
Setting
Description
Heading size
Font size of text:
h1
h2
Default
XX-Small
X-Small
Small
Medium
Large
X-Large
XX-Large
XXX-Large
Block padding
Setting
Description
Top padding
Determines the height of the top inner space of the block. Can be from 0px to 50px, increasing arithmetically of 1px (pixel).
Bottom padding
Determines the height of the top inner space of the block. Can be from 0px to 50px, increasing arithmetically of 1px (pixel).