This forum can do lots of fancy things: here's how.
And you do that like this:
Choose what size you want with one of these boxes
[size=-1] and then write what you want, then add
To do that you use this code
[color=red] Change colour [/color]
Change how your text appears
is written like this
[center] Centre Text [/center]
Underline Text - is written like this
[u] Underline Text [/u]
Bold Text - is written like this
Strikethrough or Strikethrough is writen like this
[s] Strikethrough [/s] or [strike] Strikethrough [/strike]
Or you can just use the buttons above the text box to make life easier.