Wrap the text you want to change with paragraph style HTML like this.
PO Box 349
White Plains, NY 10602
but for iTheme theme, the above does not work. Instead the following does work in iTheme:
Come to the PC Renew Workshop from 4:30 to 6:30 PM on Wednesday afternoons in White Plains…… 914-946-5511, ext. 2 for details.