- The development goal of building exactly to design specs (that is, for the resulting site or app to look precisely as intended, down to each pixel), as well as to have a site or app look exactly the same on all browsers and devices. In modern web development with its focus on responsive design and an indeterminable combination of browsers and devices, aiming for pixel-perfection is considered an unrealistic and problematic practice.
- Related terms: Tracking pixel · Reference pixel · Device pixel · CSS pixel
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