<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>Page Web</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type=text/css> body{ text-align:center; color:blue; font-size:11px; font-family:Arial, Helvetica; background-color: aliceblue; margin:0px; } #cont{ position:absolute; top:50%; left:50%; margin-left: -250px; margin-top: -150px; width:500px; height:300px; padding:0px; border:1px solid blue; background-color:#E1E1FF; } </style> </head> contenu ici </html>