body {
  background: #f1f1f1;
  margin: 0 1em;
}

.container {
  padding: 1em;
  background: white;
  margin: 1em auto;
  max-width: 1200px;
}

.red {
  background: #ED5564;
}

.yellow {
  background: #FCCE54;
}

.green {
  background: #47CEC0;
}