how 2 make it blue

when I put something in code:

that comes in blue color on this forum, so I wonder
is that feasible in other skins, and how 2 make it that way.

Of course. In the skin's stylesheets, find "#code". In the paragraph that follows, you can change just about anything in regards to the code box. "backgound-color" obviously refers to the background color, and "border" is the box's border color. Using a color code from here, replace the six characters after the number sign for those two and you're set.

This forum's code box background is #DDECF9, and the border is #d5e8f7.

Thanks for answering.

I also wonder is it possible to put my own background outside the forum border,
you know this full left and full right position of the screen, where there is nothing
except blue color.

That is something I'm not totally up to speed with but I do know it involves HTML templates which are currently disabled on Forumer's IPB boards.

i was wondering, how could i make my #code thing to be exactely like this one: http://www.edgeofnowhere.cc/viewtopic.php?t=365505

on the old days blizzhackers had the best #code but they ware screwed long time ago and their forum closed by blizz now i wanna make it at least like edgeofnothwere

thanks a lot!

-Giannis

Here's the exact CSS they're using for that section. Note: before using the code, you should ask the owner if it's okay if you do.

Thanks for the tip