The entirety of the IC post is enclosed in a frame tag, which carries the token or representation of your PC. You can make one or I can give you one using the image from your PC application.
You must select a color for PC speech, quoted and bold represent what your character says, Italics represent what your character thinks, no font type is necessary.
Long winded IC posts are not a requirement, character development takes several posts to do. Simple and to the point is preferred, but simple does not mean half a line of text.
Flair and descriptive notes are appreciated when posting
A spoiler tag labeled Actions is required to explain in game terms what your character is attempting to do, it also serves as a place to post OOC comments.
The statblock only works if your sheet is attached to the game, don't forget to do so - and to keep it up to date.
I understand that all this may be a drag, but it helps to have committed players and gives a nice aesthetic look for all of us to enjoy, after the first post it's just a matter of copying and pasting while updating the content anyway, so in reality the extra work in my opinion is negligible.