html {
    margin: 0;
  }
  
  span {
    display: block;
  }
  .canvas {
    margin: 100px auto 100px;
    width: 80%;
    text-align: center;
  }
  
  .button {
    width: 100px;
    height: 100px;
    margin: 10px;
    border: solid black 2px;
    display: inline-block;
    border-radius: 25px;
    cursor: pointer;
  }
  .button:hover{
    transform: scale(1.1);
    transition: 0.2ms ease-in;
    
  }
  h1{
    background-color: pink;
    border-radius: 25px;
    padding: 20px;

  }
  #grey {
    background: grey;

  }
  #white{
    background: white;
  
  }
  #purple {
    background: purple;
  }
  #blue {
    background: blue;
  }
  #yellow {
    background: yellow;
  }
  #red{
    background: red;
  }