What precisely is semantic HTML and why is it needed

A while ago, almost everyone made websites without considering what was under the hood. They relied on tables, used whatever was available, mostly <div> and <span> tags, and didn't care about accessibility.

But with the emergence of HTML5, things have changed. Semantic layout is an approach to markup that depends not on the content of the site but on the semantic purpose of each block and the logical structure of the document. Even in this article, there are headings …

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