Em Measurement Comparison to Pixels : measurement « Style Basics « HTML / CSS

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Em Measurement Comparison to Pixels
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
<html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en'>
        <meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
        <title>Em Measurement Comparison to Pixels</title>
        <style type='text/css'>
            body {
                font: 1em sans-serif;
                background: rgb(234234234);
                border: 1px solid rgb(200200200);
            p#em-measurement {
                width: 12em;
                padding: 1em;
            p#px-measurement {
                width: 192px;
                padding: 16px;
        <p id='em-measurement'>
            This paragraph is 12 em wide, with a 1em padding.
        <p id='px-measurement'>
            This paragraph is 192 pixels wide, with 16 pixels of

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.Units of Length and Percentage
13.Absolute vs. Relative Measurements
14.one inch tall
15.inch measurement
16.font-size with various measurements
17.This font is 24 pixels tall and this div is 3 ems tall
18.The body's border is 1em thick
19.font-size: 1in
20.inch vs pixel
21.percentage measurement width
22.A negative margin
23.This paragraph has a 1 pixel thick, solid black border around it.
24.Comparing em to Pixels
25.This font is 1.2 smaller than the default size, or pixels.
26.em measurement
27.ex measurement
28.inch measurement 2
29.inch vs pixels
30.percentage measurement
31.12 pixel base
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