OCR H446 · Component 01

1.3.4 Web technologies

HTML, CSS, forms, identifiers, JavaScript validation, search engine indexing, metadata, PageRank, SEO, and server-side processing.

Topic overview

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What is HTML used for?HTML
What is CSS used for?CSS
Why are HTML forms used?HTML
What is an HTML identifier used for?CSS
Why use JavaScript to validate input before submission?JavaScript
How can JavaScript change a web page?JavaScript

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