h1 {
  text-align: center;
  margin-right: 40px;
  font-size: 66px;
}


body {
  font-family: "Verdana";
}
.container {
  width: 700px;
  margin: auto;
  content: '';
  display: block;
  clear: both;
  text-align: center;
}

.container h1 {
  margin-right: 40px;
}

.pile {
  display: block;
  background-color: #5C1F00;
  height: 250px;
  width: 20px;
  position: absolute;
  margin-left: 100px;
  z-index: -1;
}

.pile-container {
  width: 220px;
  height: 250px;
  display: block;
  float: left;
  position: relative;
  transform: rotate(180deg);
  z-index: 400;

}

.disk {
  border: 1px solid black;
  background: blue;
  height: 40px;
  display: block;
  margin: auto;
}

.small {
  width: 20%;
}

.medium {
  width: 35%;
}

.large {
  width: 50%;
}

.selected {
  background: yellow;
}