In the following, you will find more than one sample css files for the purpose of download & testing. You are welcome to use it for any purpose, download it for free, modify it anyway you like, and share it with anybody you want.
What is a CSS File?
A CSS file (Cascading Style Sheet) is a type of document that contains styling instructions to be applied to a web page or application. It is used to determine the look and feel of HTML documents. CSS files can include styling information for fonts, colours, layouts, and other design elements.