Social Sharing – Sharing Heading

I can’t seem to find the option to change the style of the ‘Sharing Heading’ that’s part of the Social Sharing add-on for Ocean WP.

The general font is OK but I want to increase the size – can you let me know which setting I need to change in the Typography section of the Customiser, or provide the CSS?

Thanks!

The page I need help with: [log in to see the link]