This was actually pretty helpful.
I care to add on with my knowledge of HTML.
Just like Master565 said, Headers are defined as {h1} {h2}...all the way to {h6}. {h1} is the largest while {h6} is the smallest.
Moving on. You always have to remember to end your codes like you did with bb codes. They are both the same in ending.
Ex: {h1}Always Remember to END!{/h1}
Ex: Always Remember to END!
For the people confused with this matter and are embarrassing themselves...remember that this
{ =
Also I wouldn't make your About so fancy, moderators are disliking the things HTML is doing. One or two colored codes are fine.
Also, if you want to ever write regulary.
You can type
{p}Paragraph{p}
Paragraph
That's not useful in the abouts too much haha ;D