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Learning term

HTML — Data and configuration formats

HTML: The markup language describing a web page's structure and semantics. This card shows its role in “Data and configuration formats” and a safe diagnostic path.

Data and configuration formatsLevel 0–3

Orientation

HTML: The markup language describing a web page's structure and semantics. At this level, separate purpose, input, and visible result. Place HTML within Data and configuration formats before changing settings or files.

Exercise

Try it safely

When configuration does not load, validate encoding, syntax, data types, indentation, and duplicate keys relevant to HTML with a parser. Open an isolated test environment and run “python -m json.tool example.json”. Write down the expected output first, do not alter production data, and record one safe next diagnostic step.

python -m json.tool example.json

Quick check

Can you explain the purpose, observable state, and most common failure source of HTML — Data and configuration formats in one sentence each? Which evidence would you preserve before changing anything, and which repeated test would prove that the correction actually worked?