HELP!1

Um, yeah...I did something to the html code on my blog by accident and now the font on the side bar and all the lower posts is HUGE!! I don't know how to fix it lol!! Can anyone help a tech tard out?

Updated...well I think I fixed it myself! WOW I am shocked. Some of the posts still have blue fonts, but that's alot better than KING KONG font, lol!