Hi. Line Height in Helix set in number units, but not in pixels. What is the right thing for responsiveness.
line-height: 28;
not the same as
line-height: 28px;
If you need Line Height 28px you should set it 1.75 in Helix (if main font-size is 16px or 1rem/em).
If we talk about SPPB, in all addons, the Line Height value in pixels. That is not correct, and for a long time it should be changed or at least alternative units should be added. The use of pixels in Line Height makes a bunch of unnecessary additional work and code