html {
  margin: 0;
}
body{
  text-align:center;
}

span {
  display: block;
}
.canvas {
  margin: 100px auto 100px;
  width: 80%;
  text-align: center;
}

.button {
  width: 100px;
  height: 100px;
  border: solid black 2px;
  display: inline-block;
}

#pink{
  background:#D81B60 ;
}

#white {
  background: #FAFAFA;
}
#purple {
  background: #BA68C8
}
#orange {
  background: #FF9100;
}
#brown {
  background: #6D4C41;
}#blue{
  background:#4DD0E1;
}