please help !

あなた mean like Italics and bold? Easy peasy, I'll 表示する you.

For italics, あなた put an 'i' in between these two <> at the beginning of whatever あなた what to have in italics, and this '/i' in between these two <> at the end. I can't actually type it because it doesn't 表示する up when あなた 提出する your response.

For bold, あなた do the same but with a 'b' and for underlining あなた do it with a 'u'.

The end product looks like this

または this

または this.

i am not sure but may be they use word pad to change the fonts and then paste the lines