Почему Firebug возвращает ошибку в моем типе документа?
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
syntax error
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
.....