hear me out okay. first of all: cascading style sheets mean this:
One of the fundamental design principles of CSS is cascading, which allows several style sheets to influence the presentation of a document. When different declarations try to set a value for the same element/property combination, the conflicts must somehow be resolved.
so if you are not using these properties that are on a regular post body:

you're writing just Cascading Style Sheets.
also, cohost does not allow you to write a whole sheet; you can only write inline styles., so it is Cascading Style Sheets.
my proposal:
they are small style snippets, as suggested by the S in css and the style attribute name, so i propose the fitting name Chost Style Snippets, and we could use the abbreviation CS