line height is 300%

line height is 100px

line height is 50px

line height is 10px * 2

line height is 50% - 3px

line height is 25% - 3px + 25%

line height is 25% - 3px + 12.5% * 2

line height is 25% - 3px + 12.5%*2

line height is 25% - 3px + 2*12.5%

line height is 25% - 3px + 2 * 12.5%

line height is 30% + 20%

line height is 3 * 2 + 3 / 6