Line height still depends on font-family even though both font-size and line-height are set to the same fixed pixel value

Question

<style>
div {
font-size: 16px;
line-height: 16px;
display: inline-block;
width: 40%;
background: gray;
vertical-align: top;
}
</style>
<div style="font-family: monospace;">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
<div style="font-family: sans-serif;">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>

Both font-size and line-height are set to 16px. Yet the actual height of the lines still depends on whether font-family is monospace or sans-serif. What else do I need to set to get uniform line heights?

Answer 1

Your example is not good, see the below one to notice that the height is exactly the same between both.

div {
  font-size: 16px;
  line-height: 16px;
  display: inline-block;
  width: 40%;
  background: gray;
  vertical-align: top;
  background: repeating-linear-gradient(180deg,gray 0 .8lh,red 0 1lh);
}

<div style="font-family: monospace;">Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum</div>
<div style="font-family: sans-serif;">Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum <br>Lorem ipsum</div>