<!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'> body { font-size: 40px; } p { margin: 0; } p#serif { font-family: serif; } </style> </head> <body> <p id='serif'> This is serif. </p> </body> </html>