Smaller Sidebar Style

When I look at the template demo page there is a smaller sized sidebar on the left side, for example in the blog. Is there a chance to configure that style somewhere in the gk_game - Default template?

Hello,

This smaller sidebar is a sidebar module position, the black sidebar is the inset module position

yes, I realized that this is a module in a sidebar and the sidebar's position is left. What I mean is the fontstyle and -size. When I'm going to put a Joomla Articles Categories module in the same position, the smallest font-size in the Heading style dropdown menu is h5.

In this case the only way to change the font-size/font-style is using the CSS code.