CSS - Point (pt or pts) unit

1 - 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.

3 - 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

4 - Example

With a print media and the font-size

@media print {
    body { font-size: 10pt }

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