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