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What is standards mode in web development?

sobes.tech AI

Answer from AI

Standards mode is a rendering mode for web pages in browsers, where they follow W3C recommendations and specifications (CSS, HTML, DOM, etc.) as closely as possible. It contrasts with quirks mode, where browsers emulate the behavior of older versions, bypassing some errors in markup and styles for better display of sites from those times. Standards mode is enabled when a correct DOCTYPE is present at the beginning of the HTML document.

Examples of DOCTYPEs that activate standards mode:

<!DOCTYPE html>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

Using standards mode ensures predictable and cross-browser consistent rendering of web pages, simplifies development and maintenance of code, as element behavior aligns with specifications.

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