Customize look eventstable

Hey,
Im sorry im a noob, the other forumquestions didn’t help me.
I want to change some things to the main eventstable;
i would like to change the color of the borders, and add more space between the borders and the text. Furthermore i would like to show a difference between past events and future event for examble by make the letters bold or use a different color. I used the advice in other topics but those won’t work.

(i use the responsive theme and the childtheme of it)
this is the url to my website:
http://terravolta.nl/content/?page_id=27
thanks, greetings, Rianne

http://wordpress.org/plugins/really-simple-events/