anyone to help me here? I want it to learn any suggestion
The point is, if someone often reads, sees and learns something all problems will be easily understood and understood, you can see:(
reference bbcode ) how to work and apply it,
This is as material for you to learn about (
bbcode ).
The page I gave above shows how to work bbcode and you can see it, hopefully it can be a guideline for you to know about bbcode tags.
All your problems are answered here bbcode source:
https://www.bbcode.org/examples/?id=10