Topic's [parts]

i need to learn how to do that D: im sux a nib + geek anyway
heres an example :

Off topic :

[clicks on off topic ,then shows up like this]

Important Topis :
~~~~~~~~~~~
How to Edit your topic
Learn How to edit your topic
_____________
Hello xD im Eric
Intrudce
_____________
Bye im going
Good Bye
~~~~~~~~
Forum Topics :
~~~~~~~~
Hey!
__________
Hello
__________
bla bla

====================================================

how can do that in a forum :O

when they go into one

i hope you help meh cuz i know your the best XD