<!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' xml:lang='en'> <head> <title>vertical-align</title> <style rel='stylesheet' type='text/css'>p { font: 12px sans-serif;}p#control { font-size: 100px; margin: 5px 0;}p#control span { border: 1px solid rgb(200, 200, 200); background: rgb(244, 244, 244);}p#control span span { vertical-align: 300%; font-size: 20px; background: white; border: 1px solid black;} </style> </head> <body> <p> this is a test. </p> <p id='control'> <span>Nn Oo Pp <span>300%</span></span> </p> </body></html>
