Absolute units of measurement

The cm and pt units are examples of absolute units. These units are real-world measurements. CSS supports five types of absolute units

Unit Identifier	Description
in	Inches
cm	Centimeters
mm	Millimeters
pt	Points (1 point is 1/72 of an inch)
pc	Picas (1 pica is 12 points)

You can mix and match units and mix absolute and relative units.

 
<!DOCTYPE HTML> 
<html> 
    <head> 
        <title>Example</title> 
        <style type="text/css"> 
        p { 
            background: grey; 
            color:white; 
            width: 5cm; 
            font-size: 20pt; 
        } 
        </style> 
    </head> 
    <body> 
        <a href="http://java2s.com">Visit the website</a> 
        <p>I like <span>HTML</span> and CSS.</p> 
        <a class="myclass1 myclass2" href="http://java2s.com">Visit the website</a> 
    </body> 
</html>

Click to view the demo

Home
HTML CSS Book
CSS

CSS Value:

CSS Colors
CSS Lengths
Absolute units of measurement
Relative units of measurement
Working with Pixels
Working with Percentages
CSS Unit Calculations
Using CSS Angles
Using CSS Times