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Day 121: HTML Semantics & Document Structure — Deep Dive
Learn HTML Semantics & Document Structure through review & teach-back, guided resources, practical work and a portfolio-ready outcome.
Learning objectives
Understand the topic
Explain HTML Semantics & Document Structure clearly, connect it to the Web + DevTools + JSON phase, and identify one limitation or risk.
Apply the skill
Use Lighthouse and Chrome DevTools to produce a small, reviewable result that demonstrates the concept.
Study plan and official resources
Portfolio practice
Form app with validation and localStorage persistence
Complete the work in a safe test environment, capture evidence, document decisions and record what you would improve in a second pass.