.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 95vh;
}

.drawing-area {
  box-shadow: 0 0 6px 0 #999;
  background-position: center; 
   background-image: url("3.png");
  background-repeat: no-repeat;
}

.clear-button {
  margin: 2em;
  font-size: 16px;
}