CSS – Cascading Style Sheet
Cascading Style Sheet (CSS) is considered the standard style sheet language for websites. It is used to define the entire visual appearance (colours, layout, typography, etc.) of the website elements and does so independently of the HTML pages. CSS also makes it possible to define different display parameters for various output media (such as monitors, paper, projection, language, smartphones, tablets, etc.). Some interesting links on the topic are provided below. Respective website language indicated in brackets.