The word-spacing.
word-spacing: normal:
This is some text with default word-spacing. This is some text.
word-spacing: 25px:
This is some text with 25px word-spacing. This is some text.
word-spacing: 50px:
This is some text with 50px word-spacing. This is some text.
The line-height.
line-height: normal (default):
This is a text with a standard line-height.
This is some text.
line-height: 1.6 (recommended):
This is a text with the recommended line-height.
This is some text.
line-height: 50%:
This is a text with a smaller (half) line-height.
This is some text.
line-height: 200%:
This is a text with a bigger (double) line-height.
This is some text