Which term is used to describe the difference between limited resources and wants and needs scarcity economic opportunity costs

Css3 is the latest evolution of the cascading style sheets language and aims at extending css2.1. it brings a lot of new features and additions, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts.credits to medium for making this answer credits to google for copying this answercredits to me for putting this answer on your question

Idid not read your question or any thing i am just trying to get more pts so i can ask questions sorry