What is it
CSS at undergraduate level extends basic styling to layout systems (Flexbox, Grid), responsive design, and CSS architecture patterns for keeping large stylesheets maintainable as a project grows.
Why it matters
Modern CSS layout systems have replaced older, hackier techniques for building web layouts, and understanding them properly is essential for building responsive, professional websites that work well across every device size.
Exam tip
Learn Flexbox and Grid conceptually — as tools for one-dimensional versus two-dimensional layout respectively — rather than memorising properties individually; understanding which tool fits which layout problem is what actually speeds up real development work.
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