"Let us prepare our minds as if we'd come to the very end of life. Let us postpone nothing. Let us balance life's books each day ... The one who puts the finishing touches on their life each day is never short of time."
Seneca

border-inline-color

The border-inline-color CSS property defines the color of the logical inline borders of an element, which maps to a physical border color depending on the element's writing mode, directionality, and text orientation. It corresponds to the border-top-color and border-bottom-color, or border-right-color and border-left-color property depending on the values defined for writing-mode, direction, and text-orientation.
border-inline-color css reference