The border-inline-start-color Css property defines the color of the logical inline start border 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, border-right-color, border-bottom-color, or border-left-color property depending on the values defined for writing-mode, direction, and text-orientation....The border-inline-start-color CSS property defines the color of...text-orientation . Try it Syntax css border-inline-start-color: red;...