Altering the word-spacing changes the space between individual words. This paragraph has normal spacing.

Negative word spacing values bring the words closer together and can reduce readability.

Positive word spacing values increase the space between every word.

Here is a regular headline

This headline has negative word spacing

This headline has positive word spacing

A code example from Stylin’ with CSS, Third Edition by Charles Wyke-Smith. Visit stylinwithcss.com for more CSS information and updates.