font size: pixel, point, inch, mm and em, ex
<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>CSS Example</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <style type='text/css'> p {font-family:arial; font-size:12pt;} p.px {font-size:12px;} p.pt {font-size:12pt;} p.pc {font-size:2pc;} p.in {font-size:0.5in;} p.cm {font-size:1cm;} p.mm {font-size:12mm;} p.em {font-size:1.5em;} p.ex {font-size:1.5ex;} </style> </head> <body> <h1>Lengths</h1> <p class="px">The length used here is 12 px</p> <p class="pt">The length used here is 12 pt</p> <p class="pc">The length used here is 2 pc</p> <p class="in">The length used here is 0.5in</p> <p class="cm">The length used here is 1cm</p> <p class="mm">The length used here is 12mm</p> <p class="em">The length used here is 1.5em</p> <p class="ex">The length used here is 1.5ex</p> </body> </html>