The radius property always influences the appearance of round corners, but will also determine the depth of an inverted square corner. Each edge is trimmed from its end points by the corner radius, regardless of the values of the inverted and join properties. In general, this is of no consequence, because the corner will visibly join with the edges at their trim points. However, if the corner specifies a presence if invisible, the trimming of the edges will become apparent, even when the corner is square and not inverted.