CSS Foundations: Modern Stylesheet Design and Layout

Styling modern websites requires a clear grasp of how cascading style sheets work from the ground up. This text-based course guides you through core CSS principles, contemporary layout systems, and maintainable styling workflows to transform raw markup into polished, responsive web designs. You will begin by learning fundamental terminology, selector specificity, and the box model before progressing to modern layout tools and structured stylesheet architecture. What you will learn: Understand core CSS syntax, the cascade, and selector specificity rules; Master the box model, margin collapsing, and responsive sizing units; Build clean page layouts using modern Flexbox and CSS Grid; Apply CSS custom properties for cohesive color and typographic scales; Implement mobile-first responsive design strategies and viewport units; Organize modular, maintainable stylesheets using modern organizational patterns. The material begins with basic definitions and foundational mechanics before walking through practical written examples and coding exercises. This course is designed for absolute beginners and requires no prior web development experience. Start reading to master modern stylesheet design today.