Reply To: Some issues about relation between width/height and margin/padding/border

[Shikkediel]

No doubt it has a reason but it’s not very handy if you want to make a box-sized hover menu. You get the same kind of issue it was ‘invented’ for in the first place (only in reverse) :

http://codepen.io/Shikkediel/pen/LEyYpp

Maybe spz1st can include a style addition in the new spec. ;-)

#child {
width 100% border-box
}