.container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

#heatmap {
  width: 100%;
  max-width: 1000px;
}

#options {
  margin: 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#options > :first-child {
    margin-bottom: 20px;
}