css
/ˈsiː ɛs ɛs/Definitions
1. noun
A style sheet language used to control the layout and appearance of web pages.
“The web developer used CSS to design the website’s user interface.”
2. initialism
Cascading Style Sheets
“The CSS file contained all the styles for the website.”
3. verb
to style or format (text or other content) using CSS.
“The software allows you to CSS your documents for better readability.”