When calculating width and height of the box, outline width like
outline: 5px dashed red;
if box-sizing:border-box, is outline will be considered in the width/height of the box ?
I found a note about it on W3Schools HERE
It says: "Outline differs from borders! Unlike border, the outline is drawn outside the element's border, and may overlap other content. Also, the outline is NOT a part of the element's dimensions; the element's total width and height is not affected by the width of the outline."
When you set an outline it should NOT be affected by box-sizing setting and outline will be outside of the box.