I set a font-size on my body element as 19px - then from there, I am using em for different kinds of things, but there is an issue and line-heights are irregular... example, I use font-size: 0.6 em and the line height is uneven, it's driving me crazy!!
BTW using bootstrap - they set a line height of 1.428571429.
Tried using line-height normal and tested with different em sizes... There should be something I'm doing wrong?