I did change the template.css diferent way.
I searched through all tempalte.css for "#contact-form input#jform_contact_email" and everywhere where I did find
#contact-form input#jform_contact_name, #contact-form input#jform_contact_email {
bla bla bla
}
I changed it to:
#contact-form input#jform_contact_name, #contact-form input#jform_contact_email,
#contact-form input#jform_contact_emailmsg{
bla bla bla
}