About
Point (pt or pts) is a length unit commonly used in the print industry to get device pixel perfect mapping.
It's then commonly used with the print media.
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Conversion
- One point is equivalent to 4/3 physical pixels.
- The points used by CSS 2.1 are equal to 1/72nd of an inch.
- 18 pt = 24 pixel
Example
With a print media and the font-size
@media print {
body { font-size: 10pt }
}