body {
  margin: 0;
  font-family: sans-serif;
}

.heading {
  background-color: rgb(252, 82, 0);
  padding: 10px;
}

.title {
  display: block;
  color: white;
  margin: 0 auto;
  font-size: 24px;
  max-width: 1200px;
}

@media (max-width: 600px) {
  .left-column {
    width: 100%
  }

  .right-column {
    width: 100%;
  }
}

@media (min-width: 601px) {
  .content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
  }

  .left-column {
    width: 300px;
  }

  .right-column {
    flex: 1 0 auto;
  }
}