body {
  background-image: url('https://images3.alphacoders.com/966/thumb-1920-966315.png');
  background-size: auto;
}

h1 {
  text-align: center;
  font-family: monospace;
  margin-top: 50px;
  margin-bottom: 20px;
  color: white;
}

#footer {
  margin-top: 20px;
  text-align: center;
  color: white;
}

main {
  text-align: center;
}

.color {
  border: 1px solid black;
  width: 40px;
  height: 40px;
  margin: 3px;
  display: inline-flex;
}

#pixel-board {
  margin-top: 20px;
}

.pixel {
  width: 40px;
  height: 40px;
  border: 1px solid black;
  display: inline-block;
  background-color: white;
  margin-top: -4px;
}

#clear-board {
  margin-top: 10px;
}