click (//http://javascript:document.write('<script>%20alert('hi');%20</script>)
way down at the bottom if the forum index is a sub-forum called Romper Room for trying things out :bg
also - at the top is a Help button
if you scroll down, there is a list of BBC codes for this forum
i use this link in my bookmarks
http://www.masm32.com/board/Themes/default/help/posting.english.html#bbcref
font size:
[size=14pt]AaBbCc[/size]
result:
AaBbCc