input:focus border-width:3px;
<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.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'> input:focus { background-color:#ffffcc; border-width:3px; border-color:#ff0000;} </style> </head> <body> <a href="index.html">Home</a> | Login | <a href="help.html">Help</a><br /><br /> <form action="login.asp" method="post" name="frmLogin"> Username <input type="text" size="15" name="txtUsername" /><br /> Password <input type="password" size="15" name="pwdPassword" /> <input type="submit" value="Log In" /> </form> </body> </html>