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In CSS, px does not have a direct relation to screen pixel. From your reference: > The reference pixel is the visual angle of one pixel on a device with a pixe
by taejo 14y ago
In CSS, px does not have a direct relation to screen pixel. From your reference:
> The reference pixel is the visual angle of one pixel on a device with a pixel density of 96dpi and a distance from the reader of an arm's length. For a nominal arm's length of 28 inches, the visual angle is therefore about 0.0213 degrees. For reading at arm's length, 1px thus corresponds to about 0.26 mm (1/96 inch).
- jrmg 14y agoTrue, but, also from there: For lower-resolution devices, and devices with unusual viewing distances, it is recommended instead that the anchor unit be the pixel unit. For such devices it is recommended that the pixel unit refer to the whole number of device pixels that best approximates the reference pixel.