An explainer comparing static (prebuilt HTML) and dynamic (server-generated) websites: static offers faster loads, security, and simple upkeep but limited interactivity and SEO hurdles; dynamic enables real-time features, personalization, and better SEO at the cost of complexity, security risks, and slower loads. A small e-commerce case shows choosing dynamic for carts and recommendations; picks depend on project needs, with book recs to dive deeper.
Guide to CSS position: explains static (default, in normal flow), relative (offsets without affecting siblings, useful as positioned container), absolute (removed from flow, positioned to nearest positioned ancestor for overlays/centering), and fixed (pinned to viewport for sticky UI); includes combining patterns, z-index stacking, and accessibility cautions.
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