.square {
  height: 50px;
  width: 50px;
  background-color: #277eff;
}

.trapezoid {
	border-bottom: 50px solid #ff00bf;
	border-left: 25px solid transparent;
	border-right: 25px solid transparent;
	height: 0;
	width: 125px;
}

.oval {
  height: 50px;
  width: 100px;
  background-color: #09ff00;
  border-radius: 50%;
}