CSS Pixel (Computing)

In web development, a CSS pixel is a unit of measurement (just like an inch). It corresponds to the px unit used in CSS. Formally, a CSS pixel is 1/96 of an inch.

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A CSS pixel is often contrasted with a device pixel, which refers to the exact, physical unit of display on the device.

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  1. HTML Images — The srcset Attribute: Device pixels vs. CSS pixels