I am using K2 in this website

www.transgateslimo.com/blog
www.transgateslimo.com

I have a page for a blog, and on the home page I have the preview part (I do not know what;s the technical name for it, you can let me know if you know the name), and I want 2 things done on this preview section on the home page.

1- I want to edit the size and the color of the title, and the size ans style of the body text.
2- I want the recent articles to be listed first automatically.

If you know how please help me. Thank you a lot.