Landing Page Title | WordPress.org

I was able to use the CSS code .page-id-22446 .entry-title{display:none;} to hide the title from the landing page, but it has since stopped working; possibly because of the latest update?

I have tried all of the following:

post=22446 .entry-title{
display:none;
}
.page-id-22446 .entry-title{
display:none;
}
.post=22446 .entry-title{
display:none;
}
.page-id-22446 .entry-title{display:none;}

Please let me know if there is another way to hide the page title from the landing page without downloading a third party plugin.

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