Web Design in a Nutshell, 3rd Edition

Similar to letter-spacing, the value of word-spacing gets added to the standard space between words. A setting of zero (0) is equivalent to normal and will leave the word spacing unaltered. These examples of word spacing are shown in Figure 18-20.

    p {word-spacing: 1em;}

    <p>Nunc a nisl.</p>

Figure 18-20. Word spacing

Note that when specifying relative lengths (such as em, which is based on font size), the calculated size will be passed down to child elements, even if they have a smaller font size than the parent.