HTML Tag Meaning
Semantic HTML means using the correct tag for the job. It is about describing the meaning of content, not just its appearance.
The "Div Soup" Problem
A generic <div> tells the browser nothing about its content. Excessive use of divs makes code hard to read and impossible for screen readers to navigate efficiently.
Landmark Regions
Tags like <header>, <nav>, and <main> define major areas of the page. Assistive technologies use these to jump between sections, skipping repetitive content.
Content Containers
Use <article> for independent content like blog posts. Use <section> for thematic grouping of content.
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This section contains the detailed transcript explaining the shift from table-based layouts to div-based layouts, and finally to semantic HTML5. It details the accessibility API mappings for each semantic tag.
