<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title></title> <style type='text/css'> p { font: 1em sans-serif; } </style> </head> <body> <p> This font is 1 em in size and sans-serif. </p> </body> </html>