body {
  background: #0b2429;
}
#prm {
  position: absolute;
  width: 150px;
  left: 50%;
  top: 50%;
  height: 175px;
  transform: translate(-50%, -50%);
}
.c {
  width: 70px;
  height: 70px;
  position: absolute;
}
.l {
  background: #998235;
  left: 0;
  transform: skewY(-45deg);
}
.r {
  background: #1a4341;
  right: 10px;
  transform: skewY(45deg);
}
.b {
  background: #f3ac3c;
  bottom: 20px;
  width: 100px;
  height: 100px;
  transform: rotate(45deg);
  left: 20px;
}