Using SVG Path (see here) :
m 0 0 h 180 a 20 20 0 0 1 20 20 v 150 a 5 5 0 0 1 -5 5 h -25 a 20 20 0 0 0 -20 20 v 25 a 5 5 0 0 1 -5 5 h -220 a 20 20 0 0 1 -20 -20 v -185 a 20 20 0 0 1 20 -20 z