.color {
  display: inline-block;
  margin: 0 2px;
  border: solid 1px black;
  width: 40px;
  height: 40px;
}

.red {
  background-color: red;
}

.green {
  background-color: green;
}

.yellow {
  background-color: yellow;
}

.blue {
  background-color: blue;
}

.pixel {
  display: inline-block;
  border: 1px black solid;
  width: 40px;
  height: 40px;
  margin: 0;
  padding: 0;
  background-color: white;
}

/* #pixel-board {
  width: 220px;
  height: 220px;
  margin: 0;
  padding: 0;
} */

#clear-board {
  margin: 15px;
}