CSS tweak on display of password field

Hi,
I placed the following CSS tweak in my child theme style.css. It did not hide the Password field in the Profile page. Please help. I use the form builder, not sure if it makes a difference though.

.swpm-profile-password-row{
display: none;
}
.swpm-profile-password-retype-row{
display: none;
}

The page I need help with: [log in to see the link]