Units of Length and Percentage : measurement « Style Basics « HTML / CSS

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HTML / CSS » Style Basics » measurement 
Units of Length and Percentage
 


Unit  Definition                                                           Example

em    relative to the height of the font used in the element               h1 {margin:0.5em}

ex    relative to the height of the character 'x' for                      h2 {margin: 1ex
      the font used by the element
  
px    size based on the number of screen pixels                            p {font-size:12px}

in    in for inches (in = 2.54 cm)                                       {font-size: 0.5in}

cm    cm for centimetres                                                   p {font-size: 0.3cm}

mm    mm for millimetres                                                   p {font-size:3mm}

pt    pt for points (1pt = 1/72 inches)                                    {font-size:12pt}

pc    pc for picas (1pc= 12 points)                                        {font-size:1pc}

%     a percentage value relative to the value of the parent element,      p {line-height:120%
      depending on the properties used

 
Related examples in the same category
1. Absolute Units
2. Relative Units
3. Testing 96 DPI Equals an Inch
4. This paragraph has a 200 pixel width and 10 pixels of padding
5. Relative units giving rise to unequal side margins
6. Different measures
7. em is relative to the font size
8. Relative size font-size: .75em
9. width: size an element by assigning pixels, ems, a percentage, or another fixed measurement to width.
10. Percentages are more flexible because they can scale to the viewport.
11. width:100% stretches an element to the width of its parent.
12. Absolute vs. Relative Measurements
13. one inch tall
14. inch measurement
15. font-size with various measurements
16. This font is 24 pixels tall and this div is 3 ems tall
17. The body's border is 1em thick
18. font-size: 1in
19. inch vs pixel
20. percentage measurement width
21. A negative margin
22. This paragraph has a 1 pixel thick, solid black border around it.
23. Comparing em to Pixels
24. This font is 1.2 smaller than the default size, or pixels.
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