CSS Reference
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CSS Units
Measurement Values
| Unit | Description |
|---|---|
| % | percentage |
| in | inch |
| cm | centimeter |
| mm | millimeter |
| em | 1em is equal to the current font size. 2em means 2 times the size of the current font. E.g., if an element is displayed with a font of 12 pt, then '2em' is 24 pt. The 'em' is a very useful unit in CSS, since it can adapt automatically to the font that the reader uses |
| ex | one ex is the x-height of a font (x-height is usually about half the font-size) |
| pt | point (1 pt is the same as 1/72 inch) |
| pc | pica (1 pc is the same as 12 points) |
| px | pixels (a dot on the computer screen) |
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