Edit .singular .entry-title on Post not Page

Hi! I want to make the Post title visible on single post pages – but I don’t want page titles to show on my main pages. Right now I have this written in my style sheet:

.singular .entry-title {
	color: #000;
	font-size: 0px;
	font-weight: bold;
	line-height: 0px;
}

It suited my needs until today when I decided to add a blog to my website. Any suggestions?
My website is: https://www.customerannex.com/. The blog is under “Strategies”.
Thanks!