What do you mean by Pixel Perfect?

Pixel Perfect is an approach in web development where the appearance of the interface matches the design mockup as closely as possible, down to each pixel. This means that all elements, margins, font sizes, colors, and layout should align with the approved design.

This approach is important for ensuring high quality of the user interface and visual consistency. In practice, it is achieved through meticulous coding, using precise measurement units, and testing across different resolutions and browsers.

For example, if a button in the mockup has a width of 120px and margins of 16px, these parameters should be implemented exactly as such in the code, without rounding or omissions, so that the user sees the interface exactly as the designer intended.