I need some help about css box

[LoRd VOldEmoRt]

Hello friends,

i visited a website, & really like its style. (i think its the style of wikipedia)

here's the CAPs-

http://www.uploadhouse.com/fileuploads/1086/1086693ca66ffacaf325d917214971ff94a4f5c.jpg

I want to add box/style in my web like this (marked RED CROSS)
i dont need BLACK SCRATCH area's things.

plz can anybody provide me those code.

plz
plz