.B{border-style: dotted;} /*noghtechin*/
  .B{border-style: dashed;} /*khatchin*/
  .B{border-style: solid;} /*khat*/
  .B{border-style: double;} /*dota khhat barik*/
  .B{border-style: groove;} /*ye halat ghab shekl hast va vaghti rang dashte bashe behtar malloom mishe*/
  .B{border-style: ridge;} /*taghir anchenani nadasht ba (groove)*/
  .B{border-style: inset/outset } /*halat 3d be samte dakhel va biroon*/
  .B{border-style: none } /* bedoone border*/
  .B{border-style: hidden} /* ye border makhfi*/
  .B{border-style: dotted dashed solid double} /*be soorat tarkibi*/