Customizr Pro user ? Upgrade the theme from your wp admin to v1.0.13 to enjoy this new feature !
New option : display your posts in a beautiful and customizable grid
The version 3.3.6 of the Customizr WordPress theme includes a new set of options to display your blog post in a beautiful an customizable grid layout.
You’ll find those new options under Appearance > Customize > Content > Post lists