CSS
Cascading Style Sheets
Language used for visual appearance of HTML documents. It controls layout, colors, fonts, spacing, on your page.
Selector
Targeting HTML Elements
Is a pattern used to select and target HTML elements for styling. Examples: (.my-class), and ID selectors (#my-id).
Box Model
Element Layout Structure
Box Model describes how elements are structured with four areas: content, padding, border, and margin.
Responsive Design
Adaptive Web Design
Responsive design uses techniques like media queries, flexible grids, and fluid images to create websites.