.color{
  width: 40px;
  height: 40px;
}


#black{
  background-color: black;
  border: solid black;
}

#red{
  background-color: red;
  border: solid red;
}

#blue{
  background-color: blue;
  border: solid blue;
}

#yellow{
  background-color: yellow;
  border: solid yellow;
}

#erase{
  background-color: white;
  border: solid black;
  text-align: center;
}