#container
{
 border: 2px soild gray;
 margin: auto;
 display: flex;
 flex-wrap: wrap;
 padding: 10px;
}

.shapeContainer
{
 margin: 50px;
 text-align: center;
 font-weight: bold;
}

#square
{
 width: 50px;
 height: 50px;
 background: darkgreen;
}

#rectangle
{
  width: 50px;
  height: 100px;
  background: blue;
}

#diamond
{
  width: 50px;
  height: 50px;
  background: red;
  transform: rotate(45deg);
}

#circle
{
  width: 50px;
  height: 50px;
  background: purple;
  border-radius: 50px;
}

#oval
{
  width: 50px;
  height: 100px;
  background: violet;
  border-radius: 50px;
}

#triangleUp{
 	width: 0px;
 	height: 0px;
	border-left: 25px solid transparent;
  border-right: 25px solid transparent;
  border-bottom: 50px solid green;
}