Top CSS Templates:
click to go to the download page
Navik Responsive Header
Mega NavBar BS4
Mega NavBar v220
Grumpy Multistep Indicator
Slide It Sticky Slicking Elements
Duramenu Responsive
CSS3 Responsive Web Pricing Tables
Pricing Tables Framework
Forms Plus CSS Form Framework
ePack 15 CSS3 Element Packages
This page has a list of the top css templates. These are not free css templates but you should check them out because they are super useful for building sites on pretty much any framework.
For more templates check out: