Eleventy (11ty) is a super customisable static site generator that at its core transforms template language into HTML. However, template languages like Liquid and Nunjucks are designed to output HTML rather than CSS so how does Eleventy handle styling?
Partials often refers to HTML that is not a complete web page, but is intended for re-use within multiple web pages. Common examples are the header and the footer of site pages. Some advantages of this are: not having to copy that code into every page of the site; and if a change has to be made, it only has to be done in one place.