How can i make the item title smaller in the latest items display. I tried to modify the k2.css but it won't have any effect at all

badzabadia.com/

Hy,

would append the class in template-extension (if yout template has one) or k2-override, not ks.css (next update you loose your changes).

Greetings

The theme that you're using has it's own k2 styling, try changing the file in /templates/favourite/css/k2style.css