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Home > Layout engine


A web browser's layout engine takes content ( HTML, XML, images, etc.) and formatting information ( Cascading Style Sheets, etc.) and computes a visual representation of the web page, usually for output on either a monitor or a printer.

All web browsers necessarily include some form of layout engine. However, the term "layout engine" only reached popular usage when the Mozilla project designed its web browser's layout engine ( Gecko) as a component that was separable from the browser. In other words, the Mozilla layout engine was reusable for web browsers besides Mozilla, and so people began to refer to Gecko as a distinct "layout engine" rather than merely a part of the web browser.

Examples of layout engines include the following:


Web browsers

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Non User