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

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

#legend-position {
  display: flex;
  margin: 50px 100px;
  align-items: center;
}

#legend-position > :last-child {
    margin-left: 20px;
}