This text should have a green border.
CSS 1, Section 5.5.16, border-color property says: "If no color value [for the border] is specified, [then] the value of the 'color' property of the element itself will take its place."
CSS 2.1, Section 8.5.2, border-color property says: "If an element's border color is not specified with a border property, [then] user agents must use the value of the element's 'color' property as the computed value for the border color."
CSS 2.1, section 8.5.4, border property says: "Since, to some extent, the properties have overlapping functionality, the order in which the rules are specified is important."
This text should have a green border.