body {
  background-color: rgba(19,20,23);
}
canvas {
  transform: rotate(15deg);
}
.container {
  background-color: rgba(19,20,23);
  border-radius: 5px;
  width: 430px;
  margin: auto;
}
#btn {
  border: none;
  background-color: #ccc;
  border-radius: 3px;
  font-size: 20px;
  width: 350px;
  margin-left: 40px;
  margin-bottom: 10px;
  cursor: pointer;
}