Removing Title from pages

[ Moderator note: moved to Fixing WordPress. ]

I am trying to remove the titles from my pages on http://www.stoutdesignandproduction.com. I’ve gone into the style sheet and added:

.page .page-title {
display:none;
}

and it isn’t removing the title. Any help would be appreciated! It’s been about 10 years since I’ve touched this stuff and trying to get back in it.

This has probably been asked and answered a lot. I’ve tried about every resource online and this is my last resort before touch php. Thanks!